A chairman can be in a world-city.Logical formLearned from8 sentences. Chairman may pertain-to a (working party).Logical formLearned from8 sentences. A delegation may be headed by a chairman.Logical formLearned from8 sentences. Chairmen may pertain-to a person.Logical formLearned from8 sentences. A chairman can be voluntary.Logical formLearned from8 sentences. A chairman may pertain-to planning.Logical formLearned from8 sentences. A male can be chairman of an opportunity-commission.Logical formLearned from8 sentences. A male can be a chairman of an advisory-committee.Logical formLearned from8 sentences. A male can be chairman of a joint-committee.Logical formLearned from8 sentences. Chairman may pertain-to an interagency.Logical formLearned from8 sentences. Badges may pertain-to a chairman.Logical formLearned from8 sentences. A male may serve as chairman of committees.Logical formLearned from8 sentences. A chairman may pertain-to a program-committee.Logical formLearned from8 sentences. A chairman may pertain-to a company.Logical formLearned from8 sentences. Responsibilities can be as chairman.Logical formLearned from8 sentences.