A role can be in a classroom.Logical formLearned from28 sentences. A role can be expressive.Logical formLearned from28 sentences. Personalities may play a role.Logical formLearned from28 sentences. Topics may include a role.Logical formLearned from28 sentences. A role may pertain-to a (faculty member).Logical formLearned from28 sentences. Transportation may play a role.Logical formLearned from28 sentences. Weapons may play a role.Logical formLearned from28 sentences. Roles can be as workers.Logical formLearned from28 sentences. Roles can be customary.Logical formLearned from28 sentences. Associations may play a role.Logical formLearned from28 sentences. Foundations may play a role.Logical formLearned from28 sentences. A role can be in helping a country.Logical formLearned from28 sentences. Tradition may play a role.Logical formLearned from28 sentences. A role may pertain-to a social worker.Logical formLearned from28 sentences. Forests may play a role.Logical formLearned from28 sentences.