A reference can be to a world-city.Logical formLearned from93 sentences. A reference can be short.Logical formLearned from93 sentences. References can be cryptic.Logical formLearned from92 sentences. References can be to material.Logical formLearned from92 sentences. A reference can be to an array.Logical formLearned from92 sentences. A reference can be to a claim.Logical formLearned from92 sentences. Reference can be to a US-city.Logical formLearned from92 sentences. Some points can be constituted-of-or-filled-with reference.Logical formLearned from91 sentences. A (reference point) may pertain-to a person.Logical formLearned from91 sentences. References may pertain-to a country.Logical formLearned from91 sentences. A reference can be reliable.Logical formLearned from90 sentences. Reference can be to the world.Logical formLearned from90 sentences. References can be to a US-president.Logical formLearned from90 sentences. Reference can be to countries.Logical formLearned from90 sentences. A reference can be crude.Logical formLearned from90 sentences.