protected RelationshipEdge(
	EntityDefinition startEntity,
	EntityDefinition endEntity,
	EntityRelationshipType relationType,
	string startEntityNavigator,
	string endEntityNavigator
)

Protected Sub New ( 
	startEntity As EntityDefinition,
	endEntity As EntityDefinition,
	relationType As EntityRelationshipType,
	startEntityNavigator As String,
	endEntityNavigator As String
)