Reference can be to days.Logical formLearned from38 sentences. Reference can be to a region.Logical formLearned from38 sentences. A (reference laboratory) can be in a country.Logical formLearned from38 sentences. A reference can be to a us-state.Logical formLearned from37 sentences. A reference can be to a need.Logical formLearned from37 sentences. References can be unresolved.Logical formLearned from37 sentences. A (reference librarian) may pertain-to a person.Logical formLearned from37 sentences. A reference can be to a service.Logical formLearned from37 sentences. Lots can be in reference.Logical formLearned from37 sentences. Reference can be to a legislature.Logical formLearned from37 sentences. A title can be a reference to a song.Logical formLearned from37 sentences. A reference can be to a style.Logical formLearned from37 sentences. A reference can be conscious.Logical formLearned from37 sentences. Ideas can be constituted-of-or-filled-with reference.Logical formLearned from37 sentences. A form can be constituted-of-or-filled-with reference.Logical formLearned from37 sentences.