A role can be as a lecturer.Logical formLearned from25 sentences. Roles can be as caregivers.Logical formLearned from25 sentences. A (leadership role) can be in research.Logical formLearned from25 sentences. A role can be in (world history).Logical formLearned from25 sentences. A role can be in cultures.Logical formLearned from25 sentences. A (leadership role) can be formal.Logical formLearned from25 sentences. Troops may have a role.Logical formLearned from25 sentences. A role may pertain-to cities.Logical formLearned from25 sentences. A role may be made.Logical formLearned from25 sentences. Officers may play a role.Logical formLearned from25 sentences. (Government policies) may play a role.Logical formLearned from25 sentences. A role may pertain-to a factor.Logical formLearned from25 sentences. A person may perform a role.Logical formLearned from25 sentences. A role may pertain-to a politician.Logical formLearned from25 sentences. A role can be in securring a release.Logical formLearned from25 sentences.