A role may pertain-to a papacy.Logical formLearned from40 sentences. A role may pertain-to a historian.Logical formLearned from40 sentences. A role may be based.Logical formLearned from40 sentences. (Gender roles) can be defined.Logical formLearned from40 sentences. Serotonin may play a role.Logical formLearned from40 sentences. A role can be noticeable.Logical formLearned from40 sentences. A role may be explored.Logical formLearned from40 sentences. A role can be in debate.Logical formLearned from40 sentences. A role may pertain-to a secretariat.Logical formLearned from40 sentences. A role can be in organizing.Logical formLearned from40 sentences. Roles can be advanced.Logical formLearned from40 sentences. A perspective can be on a role.Logical formLearned from40 sentences. A role may be overstated.Logical formLearned from40 sentences. Roles can be controversial.Logical formLearned from40 sentences. A description may pertain-to roles.Logical formLearned from40 sentences.