An (airplane seat) may be used for sit_inning.Logical formLearned from2 sentences. A female may be sit_ined.Logical formLearned from2 sentences. A person may sit_in on a (working party).Logical formLearned from2 sentences. A male may sit_in a (woman speaker).Logical formLearned from2 sentences. A (vice president) may sit_in on meetings.Logical formLearned from2 sentences. A daughter may sit_in on a trial.Logical formLearned from2 sentences. An adviser may sit_in on a (phone conversation).Logical formLearned from2 sentences. A second officer may sit_in on a meeting.Logical formLearned from2 sentences. Officials may sit_in on meetings.Logical formLearned from2 sentences. A person may sit_in on a ceremony.Logical formLearned from2 sentences. A lawyer may sit_in on interviews.Logical formLearned from2 sentences. Some members of an executive committee may sit_in on a meeting.Logical formLearned from2 sentences. Some officials may sit_in on a meeting.Logical formLearned from2 sentences. Witnesses may sit_in on interviews.Logical formLearned from2 sentences. A (government official) may sit_in on meetings.Logical formLearned from2 sentences.