Unique Named Structural Feature in Sub-Class
<<not>>
superClass : EClass
<<not>>
superStructuralFeature : EStructuralFeature
<<not>> name = structuralFeatureName
subClass : EClass
subStructuralFeature : EStructuralFeature
name = structuralFeatureName
<<not>>
eSuperTypes
<<not>>
eContainingClass
eStructuralFeatures
eContainingClass
eStructuralFeatures