A male may atm (transaction reference number).Logical formLearned from45 sentences. References can be invalid.Logical formLearned from45 sentences. References can be shared.Logical formLearned from45 sentences. A reference can be to a term.Logical formLearned from45 sentences. A reference can be to a comment.Logical formLearned from45 sentences. References can be from persons.Logical formLearned from45 sentences. Reference can be to a meeting.Logical formLearned from45 sentences. A (reference section) may pertain-to a library.Logical formLearned from45 sentences. Reference can be to a family.Logical formLearned from45 sentences. A reference can be to a relationship.Logical formLearned from45 sentences. A reference can be in a field.Logical formLearned from45 sentences. A reference can be to an attack.Logical formLearned from45 sentences. A reference can be to itself.Logical formLearned from45 sentences. A reference can be to a fact.Logical formLearned from45 sentences. A reference can be to a function.Logical formLearned from45 sentences.