A male may serve as a speaker.Logical formLearned from38 sentences. Cities may be served.Logical formLearned from38 sentences. A male may serve in an airline.Logical formLearned from38 sentences. Men may serve under a male.Logical formLearned from38 sentences. Requests may be served.Logical formLearned from38 sentences. A female may serve for a time.Logical formLearned from38 sentences. An one may be served.Logical formLearned from38 sentences. Water may be served by some (water systems).Logical formLearned from38 sentences. Areas may be served.Logical formLearned from38 sentences. A person may serve on committees.Logical formLearned from38 sentences. Some troops may serve in a force.Logical formLearned from38 sentences. Memory may be served.Logical formLearned from38 sentences. A male may serve on a team.Logical formLearned from38 sentences. A world-city may serve.Logical formLearned from38 sentences. A person may serve alcohol.Logical formLearned from38 sentences.