diff --git a/CAu_NLP_2019/.idea/uiDesigner.xml b/CAu_NLP_2019/.idea/uiDesigner.xml
new file mode 100644
index 0000000..e96534f
--- /dev/null
+++ b/CAu_NLP_2019/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>
\ No newline at end of file
diff --git a/CAu_NLP_2019/.idea/workspace.xml b/CAu_NLP_2019/.idea/workspace.xml
index 6419bae..3995ef4 100644
--- a/CAu_NLP_2019/.idea/workspace.xml
+++ b/CAu_NLP_2019/.idea/workspace.xml
@@ -1,14 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ChangeListManager">
-    <list default="true" id="878e5c11-e08f-43ee-a4df-9d0edd20ed32" name="Default Changelist" comment="">
-      <change afterPath="$PROJECT_DIR$/src/main/java/Result.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
+    <list default="true" id="878e5c11-e08f-43ee-a4df-9d0edd20ed32" name="Default Changelist" comment="Add Server for request from the web app angular 8">
+      <change afterPath="$PROJECT_DIR$/.idea/uiDesigner.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/App.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/App.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/target/classes/App.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/App.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/App.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/nlp/App.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/Article.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/nlp/Article.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/Result.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/nlp/Result.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/TFIDF.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/nlp/TFIDF.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/App.class" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/Article.class" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/TFIDF.class" beforeDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <ignored path="$PROJECT_DIR$/target/" />
@@ -24,13 +27,19 @@
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
       <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/src/main/java/App.java">
+        <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/App.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="154">
-              <caret line="135" column="44" lean-forward="true" selection-start-line="135" selection-start-column="44" selection-end-line="135" selection-end-column="44" />
-              <folding>
-                <element signature="imports" expanded="true" />
-              </folding>
+            <state relative-caret-position="102">
+              <caret line="7" selection-start-line="7" selection-end-line="7" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/TFIDF.java">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="51">
+              <caret line="3" selection-start-line="3" selection-end-line="3" />
             </state>
           </provider>
         </entry>
@@ -38,17 +47,17 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/pom.xml">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="425">
-              <caret line="25" selection-start-line="25" selection-end-line="25" />
+            <state relative-caret-position="119">
+              <caret line="49" column="29" lean-forward="true" selection-start-line="49" selection-start-column="29" selection-end-line="49" selection-end-column="29" />
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/Result.java">
+        <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/Result.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="238">
-              <caret line="14" column="31" selection-start-line="14" selection-start-column="31" selection-end-line="14" selection-end-column="31" />
+            <state>
+              <caret column="13" selection-start-column="13" selection-end-column="13" />
               <folding>
                 <element signature="e#208#209#0" expanded="true" />
                 <element signature="e#236#237#0" expanded="true" />
@@ -64,10 +73,10 @@
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/Article.java">
+        <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/Article.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="722">
-              <caret line="59" column="28" selection-start-line="59" selection-start-column="18" selection-end-line="59" selection-end-column="28" />
+            <state>
+              <caret column="13" selection-start-column="13" selection-end-column="13" />
               <folding>
                 <element signature="e#511#512#0" expanded="true" />
                 <element signature="e#540#541#0" expanded="true" />
@@ -132,14 +141,27 @@
     <option name="CHANGED_PATHS">
       <list>
         <option value="$PROJECT_DIR$/CAu_NLP_2019.iml" />
-        <option value="$PROJECT_DIR$/src/main/java/Article.java" />
         <option value="$PROJECT_DIR$/src/main/java/tfidf.java" />
-        <option value="$PROJECT_DIR$/src/main/java/Result.java" />
-        <option value="$PROJECT_DIR$/pom.xml" />
         <option value="$PROJECT_DIR$/src/main/java/App.java" />
+        <option value="$PROJECT_DIR$/src/main/java/Result.java" />
+        <option value="$PROJECT_DIR$/src/main/java/Article.java" />
+        <option value="$PROJECT_DIR$/src/main/java/TFIDF.java" />
+        <option value="$PROJECT_DIR$/pom.xml" />
+        <option value="$PROJECT_DIR$/src/main/java/com/nlp/App.java" />
       </list>
     </option>
   </component>
+  <component name="MavenProjectNavigator">
+    <treeState>
+      <expand>
+        <path>
+          <item name="" type="16c1761:MavenProjectsStructure$RootNode" />
+          <item name="CAu_NLP_2019" type="9519ce18:MavenProjectsStructure$ProjectNode" />
+        </path>
+      </expand>
+      <select />
+    </treeState>
+  </component>
   <component name="ProjectFrameBounds" extendedState="6">
     <option name="x" value="260" />
     <option name="y" value="40" />
@@ -216,7 +238,7 @@
   </component>
   <component name="RunManager">
     <configuration name="App" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
-      <option name="MAIN_CLASS_NAME" value="App" />
+      <option name="MAIN_CLASS_NAME" value="com.nlp.App" />
       <module name="CAu_NLP_2019" />
       <method v="2">
         <option name="Make" enabled="true" />
@@ -245,18 +267,27 @@
       <workItem from="1559824912264" duration="975000" />
       <workItem from="1559826436158" duration="669000" />
       <workItem from="1560222716538" duration="45000" />
-      <workItem from="1560238353777" duration="3020000" />
+      <workItem from="1560238353777" duration="5495000" />
+      <workItem from="1560298580892" duration="3066000" />
     </task>
+    <task id="LOCAL-00001" summary="Add Server for request from the web app angular 8">
+      <created>1560241429708</created>
+      <option name="number" value="00001" />
+      <option name="presentableId" value="LOCAL-00001" />
+      <option name="project" value="LOCAL" />
+      <updated>1560241429708</updated>
+    </task>
+    <option name="localTasksCounter" value="2" />
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="4740000" />
+    <option name="totallyTimeSpent" value="10281000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="-8" y="-8" width="1936" height="1056" extended-state="6" />
     <editor active="true" />
     <layout>
-      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.19189766" />
+      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.19402985" />
       <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
       <window_info id="Image Layers" order="2" />
       <window_info id="Designer" order="3" />
@@ -280,7 +311,7 @@
       <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
       <window_info anchor="right" id="Palette" order="3" />
-      <window_info anchor="right" id="Maven" order="4" />
+      <window_info anchor="right" id="Maven" order="4" weight="0.32995737" />
       <window_info anchor="right" id="Theme Preview" order="5" />
       <window_info anchor="right" id="Capture Analysis" order="6" />
       <window_info anchor="right" id="Palette&#9;" order="7" />
@@ -318,15 +349,19 @@
   <component name="TypeScriptGeneratedFilesManager">
     <option name="version" value="1" />
   </component>
+  <component name="UpdateCopyrightCheckinHandler">
+    <option name="UPDATE_COPYRIGHT" value="true" />
+  </component>
+  <component name="VcsManagerConfiguration">
+    <option name="CHECK_CODE_CLEANUP_BEFORE_PROJECT_COMMIT" value="true" />
+    <MESSAGE value="Add Server for request from the web app angular 8" />
+    <option name="LAST_COMMIT_MESSAGE" value="Add Server for request from the web app angular 8" />
+    <option name="OPTIMIZE_IMPORTS_BEFORE_PROJECT_COMMIT" value="true" />
+    <option name="REFORMAT_BEFORE_PROJECT_COMMIT" value="true" />
+    <option name="REARRANGE_BEFORE_PROJECT_COMMIT" value="true" />
+  </component>
   <component name="editorHistoryManager">
     <entry file="file://$PROJECT_DIR$/CAu_NLP_2019.iml" />
-    <entry file="file://$PROJECT_DIR$/src/main/java/TFIDF.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="357">
-          <caret line="21" column="7" lean-forward="true" selection-start-line="21" selection-start-column="7" selection-end-line="21" selection-end-column="7" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/target/classes/App.class">
       <provider selected="true" editor-type-id="text-editor">
         <state>
@@ -336,10 +371,10 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/Article.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/Article.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="722">
-          <caret line="59" column="28" selection-start-line="59" selection-start-column="18" selection-end-line="59" selection-end-column="28" />
+        <state>
+          <caret column="13" selection-start-column="13" selection-end-column="13" />
           <folding>
             <element signature="e#511#512#0" expanded="true" />
             <element signature="e#540#541#0" expanded="true" />
@@ -367,10 +402,10 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/Result.java">
+    <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/Result.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="238">
-          <caret line="14" column="31" selection-start-line="14" selection-start-column="31" selection-end-line="14" selection-end-column="31" />
+        <state>
+          <caret column="13" selection-start-column="13" selection-end-column="13" />
           <folding>
             <element signature="e#208#209#0" expanded="true" />
             <element signature="e#236#237#0" expanded="true" />
@@ -384,20 +419,24 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/pom.xml">
+    <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/TFIDF.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="425">
-          <caret line="25" selection-start-line="25" selection-end-line="25" />
+        <state relative-caret-position="51">
+          <caret line="3" selection-start-line="3" selection-end-line="3" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/App.java">
+    <entry file="file://$PROJECT_DIR$/pom.xml">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="154">
-          <caret line="135" column="44" lean-forward="true" selection-start-line="135" selection-start-column="44" selection-end-line="135" selection-end-column="44" />
-          <folding>
-            <element signature="imports" expanded="true" />
-          </folding>
+        <state relative-caret-position="119">
+          <caret line="49" column="29" lean-forward="true" selection-start-line="49" selection-start-column="29" selection-end-line="49" selection-end-column="29" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/com/nlp/App.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="102">
+          <caret line="7" selection-start-line="7" selection-end-line="7" />
         </state>
       </provider>
     </entry>
diff --git a/CAu_NLP_2019/target/classes/App.class b/CAu_NLP_2019/target/classes/App.class
deleted file mode 100644
index fa234f0..0000000
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diff --git a/CAu_NLP_2019/target/classes/Article.class b/CAu_NLP_2019/target/classes/Article.class
deleted file mode 100644
index 2a90d6d..0000000
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diff --git a/CAu_NLP_2019/target/classes/TFIDF.class b/CAu_NLP_2019/target/classes/TFIDF.class
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index 151e27e..0000000
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