An (air force chief) can be retired.Logical formLearned from49 sentences. A father can be a chief.Logical formLearned from48 sentences. Chief may pertain-to a force.Logical formLearned from48 sentences. Chiefs may pertain-to a tribe.Logical formLearned from48 sentences. A chief can be outspoken.Logical formLearned from48 sentences. A chief may undergo a selection.Logical formLearned from48 sentences. A (chief investigator) may pertain-to an international-political-entity.Logical formLearned from48 sentences. A chief may pertain-to a command.Logical formLearned from48 sentences. A chief may pertain-to a continental-region.Logical formLearned from48 sentences. (Deputy chief) may pertain-to a staff.Logical formLearned from48 sentences. A (tax chief) may pertain-to a country.Logical formLearned from48 sentences. A (party chief) may pertain-to a legislature.Logical formLearned from48 sentences. A (chief executive) can be incoming.Logical formLearned from47 sentences. (Police chiefs) can be provincial.Logical formLearned from47 sentences. A chief may pertain-to forces.Logical formLearned from47 sentences.