A role can be in chemistry.Logical formLearned from25 sentences. A role may pertain-to a citizen.Logical formLearned from25 sentences. Human activities may play a role.Logical formLearned from25 sentences. A role can be in (drug abuse).Logical formLearned from25 sentences. A role can be for research.Logical formLearned from25 sentences. A role may pertain-to an interpreter.Logical formLearned from25 sentences. A role can be sad.Logical formLearned from25 sentences. A role can be in national security.Logical formLearned from25 sentences. Persons may study a role.Logical formLearned from25 sentences. Depression may play a role.Logical formLearned from25 sentences. A subcommittee may play a role.Logical formLearned from25 sentences. A role may be needed.Logical formLearned from25 sentences. Judgment may play a role.Logical formLearned from25 sentences. A role may pertain-to banks.Logical formLearned from25 sentences. Claims can be about a role.Logical formLearned from25 sentences.