A reference can be to a location.Logical formLearned from63 sentences. A reference can be to cricket.Logical formLearned from63 sentences. A reference can be to an incident.Logical formLearned from63 sentences. (Subclass references) can be to a class.Logical formLearned from63 sentences. Reference can be to self.Logical formLearned from63 sentences. Reference can be to questions.Logical formLearned from63 sentences. A reference can be textual.Logical formLearned from63 sentences. A (reference guide) can be comprehensive.Logical formLearned from63 sentences. References can be interesting.Logical formLearned from63 sentences. A (reference guide) may pertain-to a person.Logical formLearned from63 sentences. References can be to characters.Logical formLearned from63 sentences. Reference can be to a war.Logical formLearned from63 sentences. A reference can be to a proposal.Logical formLearned from63 sentences. References can be to a past.Logical formLearned from63 sentences. A reference can be to a term.Logical formLearned from63 sentences.