diff --git a/testGitExtLibrary/extlibrary.ecore b/testGitExtLibrary/extlibrary.ecore
index 0cea4a6..9501ecc 100644
--- a/testGitExtLibrary/extlibrary.ecore
+++ b/testGitExtLibrary/extlibrary.ecore
@@ -2,14 +2,14 @@
 <ecore:EPackage xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="extlibrary" nsURI="http:///org/eclipse/emf/examples/library/extlibrary.ecore/1.0.0"
     nsPrefix="extlib">
-  <eClassifiers xsi:type="ecore:EClass" name="Book" eSuperTypes="#//CirculatingItem">
-    <eStructuralFeatures xsi:type="ecore:EAttribute" name="title" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+  <eClassifiers xsi:type="ecore:EClass" name="Book" eSuperTypes="#//CirculatingItem #//TitledItem">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="pages" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"
         defaultValueLiteral="100"/>
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="category" eType="#//BookCategory"
         unsettable="true"/>
     <eStructuralFeatures xsi:type="ecore:EReference" name="author" lowerBound="1"
         eType="#//Writer" eOpposite="#//Writer/books"/>
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="subtitle" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="Library" eSuperTypes="#//Addressable">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
@@ -59,6 +59,8 @@
     <eLiterals name="Mystery"/>
     <eLiterals name="ScienceFiction" value="1"/>
     <eLiterals name="Biography" value="2"/>
+    <eLiterals name="Manga" value="3" literal="Manga"/>
+    <eLiterals name="Manhwa" value="5"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="Item" abstract="true">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="publicationDate" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EDate"/>
@@ -70,19 +72,16 @@
         upperBound="-1" eType="#//Borrower" eOpposite="#//Borrower/borrowed"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="CirculatingItem" abstract="true" eSuperTypes="#//Item #//Lendable"/>
-  <eClassifiers xsi:type="ecore:EClass" name="Periodical" abstract="true" eSuperTypes="#//Item">
-    <eStructuralFeatures xsi:type="ecore:EAttribute" name="title" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+  <eClassifiers xsi:type="ecore:EClass" name="Periodical" abstract="true" eSuperTypes="#//Item #//TitledItem">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="issuesPerYear" lowerBound="1"
         eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"/>
   </eClassifiers>
-  <eClassifiers xsi:type="ecore:EClass" name="AudioVisualItem" abstract="true" eSuperTypes="#//CirculatingItem">
-    <eStructuralFeatures xsi:type="ecore:EAttribute" name="title" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
-    <eStructuralFeatures xsi:type="ecore:EAttribute" name="minutesLength" lowerBound="1"
+  <eClassifiers xsi:type="ecore:EClass" name="AudioVisualItem" abstract="true" eSuperTypes="#//CirculatingItem #//TitledItem">
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="minutes" lowerBound="1"
         eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"/>
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="damaged" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EBoolean"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="BookOnTape" eSuperTypes="#//AudioVisualItem">
-    <eStructuralFeatures xsi:type="ecore:EReference" name="reader" eType="#//Person"/>
     <eStructuralFeatures xsi:type="ecore:EReference" name="author" eType="#//Writer"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="VideoCassette" eSuperTypes="#//AudioVisualItem">
@@ -95,7 +94,7 @@
   <eClassifiers xsi:type="ecore:EClass" name="Person" eSuperTypes="#//Addressable">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="firstName" lowerBound="1"
         eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
-    <eStructuralFeatures xsi:type="ecore:EAttribute" name="lastName" lowerBound="1"
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="familyName" lowerBound="1"
         eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="Employee" eSuperTypes="#//Person">
@@ -104,4 +103,8 @@
   <eClassifiers xsi:type="ecore:EClass" name="Addressable" abstract="true" interface="true">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="address" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
   </eClassifiers>
+  <eClassifiers xsi:type="ecore:EClass" name="Magazine" eSuperTypes="#//Periodical"/>
+  <eClassifiers xsi:type="ecore:EClass" name="TitledItem">
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="title" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+  </eClassifiers>
 </ecore:EPackage>