Crews may pertain-to submarines.Logical formLearned from12 sentences. A crew may cling to a rigging.Logical formLearned from12 sentences. A crew can be favored.Logical formLearned from12 sentences. A crew can be steady.Logical formLearned from12 sentences. Crews may race for some spaces.Logical formLearned from12 sentences. A crew may split_up.Logical formLearned from12 sentences. A crew can be missing.Logical formLearned from12 sentences. Bodies of some (crew members) may be recovered.Logical formLearned from12 sentences. Some crews can be from some countries.Logical formLearned from12 sentences. A handful can be constituted-of-or-filled-with (crew members).Logical formLearned from12 sentences. A male may serve as a (crew chief).Logical formLearned from12 sentences. (Guard crews) can be armed.Logical formLearned from12 sentences. A shortage can be constituted-of-or-filled-with crews.Logical formLearned from12 sentences. A (crew chief) can be full-time.Logical formLearned from12 sentences. A disappearance may pertain-to a crew.Logical formLearned from12 sentences.