self.slot->select(sl : SlotType1 | (not sl.name.oclIsUndefined()) and (sl.name = 'legalAuthenticator'))->forAll(sl : SlotType1 | 
	(not sl.valueList.oclIsUndefined()) and 
	(sl.valueList.value->forAll(val : String | sl.isXCN(val))) 
)