diff --git a/testGitExtLibrary/extlibrary.ecore b/testGitExtLibrary/extlibrary.ecore
index 0cea4a6..30ad08a 100644
--- a/testGitExtLibrary/extlibrary.ecore
+++ b/testGitExtLibrary/extlibrary.ecore
@@ -59,30 +59,26 @@
     <eLiterals name="Mystery"/>
     <eLiterals name="ScienceFiction" value="1"/>
     <eLiterals name="Biography" value="2"/>
+    <eLiterals name="Encyclopedia" value="3" literal="Encyclopedia"/>
+    <eLiterals name="Dictionary" value="4"/>
   </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"/>
   </eClassifiers>
-  <eClassifiers xsi:type="ecore:EClass" name="Lendable" abstract="true" interface="true">
+  <eClassifiers xsi:type="ecore:EClass" name="Borrowable" abstract="true" interface="true">
     <eStructuralFeatures xsi:type="ecore:EAttribute" name="copies" lowerBound="1"
         eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"/>
     <eStructuralFeatures xsi:type="ecore:EReference" name="borrowers" ordered="false"
         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"/>
-    <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="CirculatingItem" abstract="true" eSuperTypes="#//Item #//Borrowable"/>
   <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"
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="length" 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">
@@ -90,13 +86,10 @@
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="Borrower" eSuperTypes="#//Person">
     <eStructuralFeatures xsi:type="ecore:EReference" name="borrowed" upperBound="-1"
-        eType="#//Lendable" eOpposite="#//Lendable/borrowers"/>
+        eType="#//Borrowable" eOpposite="#//Borrowable/borrowers"/>
   </eClassifiers>
   <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"
-        eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="fullName" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
   </eClassifiers>
   <eClassifiers xsi:type="ecore:EClass" name="Employee" eSuperTypes="#//Person">
     <eStructuralFeatures xsi:type="ecore:EReference" name="manager" eType="#//Employee"/>
@@ -104,4 +97,8 @@
   <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="#//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="pages" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"/>
+  </eClassifiers>
 </ecore:EPackage>