An aircraft may lose altitude.Logical formLearned from40 sentences. Aircraft may be targeted.Logical formLearned from40 sentences. (Aircraft parts) can be spare.Logical formLearned from40 sentences. Some aircrafts may collide.Logical formLearned from40 sentences. A (747-400 aircraft) may pertain-to a company.Logical formLearned from40 sentences. A model may show aircraft.Logical formLearned from40 sentences. A fleet may be make_uped of aircraft.Logical formLearned from40 sentences. An aircraft may strike.Logical formLearned from40 sentences. An aircraft may undergo a shooting.Logical formLearned from40 sentences. Demand can be for military aircraft.Logical formLearned from39 sentences. A (reconnaissance aircraft) can be unmanned.Logical formLearned from39 sentences. An aircraft can be of construction.Logical formLearned from39 sentences. An aircraft can be in condition.Logical formLearned from39 sentences. A (737-700 aircraft) may pertain-to a company.Logical formLearned from39 sentences. An aircraft may undergo a grounding.Logical formLearned from39 sentences.