A helicopter may crash after take_offing.Logical formLearned from3 sentences. A (f-16 fighter) may take_off from an airline.Logical formLearned from3 sentences. Persons may take_off at some a.m..Logical formLearned from3 sentences. A plane may take_off in a world-city.Logical formLearned from3 sentences. An aircraft may take_off for a world-city.Logical formLearned from3 sentences. A plane may take_off an airport.Logical formLearned from3 sentences. Warplanes may take_off from (air base).Logical formLearned from3 sentences. Some tankers may take_off from a base.Logical formLearned from3 sentences. A plane may take_off from an airbase.Logical formLearned from3 sentences. Warplanes may take_off from bases.Logical formLearned from3 sentences. A helicopter may take_off from an (air base).Logical formLearned from3 sentences. A female may take_off at some a.m..Logical formLearned from3 sentences. A plane may take_off at an (airforce base).Logical formLearned from3 sentences. A male may take_off equipment.Logical formLearned from3 sentences. A US-city may take_off from a US-city.Logical formLearned from3 sentences.