An aircraft may crash in a region.Logical formLearned from4 sentences. A chopper may crash in mountains.Logical formLearned from4 sentences. Some buses may crash on a highway.Logical formLearned from4 sentences. A bus may crash into a train.Logical formLearned from4 sentences. Helicopter may crash some miles.Logical formLearned from4 sentences. A plane may crash in waters.Logical formLearned from4 sentences. A minibus may crash head-on.Logical formLearned from4 sentences. A helicopter may crash in woods.Logical formLearned from4 sentences. A plane may crash on a mountain.Logical formLearned from4 sentences. A f-15 may crash.Logical formLearned from4 sentences. A small plane may crash in a morning.Logical formLearned from4 sentences. A (turboprop aircraft) may crash into a lagoon.Logical formLearned from4 sentences. A helicopter may crash during a (training flight).Logical formLearned from4 sentences. Some rockets may crash into fields.Logical formLearned from4 sentences. A (passenger helicopter) may crash in a country.Logical formLearned from4 sentences.