Persons may make reference.Logical formLearned from26 sentences. References can be to a variable.Logical formLearned from26 sentences. A reference can be obsolete.Logical formLearned from26 sentences. A reference can be to religion.Logical formLearned from26 sentences. Sources can be constituted-of-or-filled-with reference.Logical formLearned from26 sentences. References can be for research.Logical formLearned from26 sentences. A list can be constituted-of-or-filled-with (reference works).Logical formLearned from26 sentences. References can be in a text.Logical formLearned from26 sentences. A reference can be to a language.Logical formLearned from26 sentences. A reference can be to a slogan.Logical formLearned from26 sentences. References can be to ethnicity.Logical formLearned from26 sentences. Reference can be to violence.Logical formLearned from26 sentences. A male may say in reference to a country.Logical formLearned from26 sentences. A (reference price) can be for delivery.Logical formLearned from26 sentences. Reference can be to talks.Logical formLearned from25 sentences.