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