Some (crew members) may perish.Logical formLearned from18 sentences. A crew may climb.Logical formLearned from18 sentences. A rescue may pertain-to a crew.Logical formLearned from18 sentences. A crew may be sent.Logical formLearned from18 sentences. A conversation can be with a crew.Logical formLearned from18 sentences. Crews can be clean.Logical formLearned from18 sentences. Crews may be trained.Logical formLearned from18 sentences. A (helicopter crew) may pertain-to a country.Logical formLearned from18 sentences. Crews may battle a blaze.Logical formLearned from18 sentences. Some crew can be on a ship.Logical formLearned from18 sentences. A (shuttle crew) may conduct some spacewalks.Logical formLearned from18 sentences. A (crew member) may pertain-to a station.Logical formLearned from18 sentences. Members may pertain-to a (tank crew).Logical formLearned from18 sentences. Crews may enter waters.Logical formLearned from18 sentences. A crew may enter waters.Logical formLearned from18 sentences.