<eClassifiers xsi:type="ecore:EClass" name="Exhibition">
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="title" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
    
    ...
    
    <eStructuralFeatures xsi:type="ecore:EReference" name="scenes" upperBound="-1"
        eType="#//Scene" containment="true" resolveProxies="false"/>
</eClassifiers>