A mid-air collision can be between some gliders.Logical formLearned from3 sentences. A cause of collision can be under_investigation.Logical formLearned from3 sentences. A fire may cause a collision of some boats.Logical formLearned from3 sentences. A settlement can be over a collision.Logical formLearned from3 sentences. A collision can be with a (fuel tanker).Logical formLearned from3 sentences. A cause of a collision may remain unclear.Logical formLearned from3 sentences. A quake may be caused by a collision.Logical formLearned from3 sentences. Civilizations may undergo a collision.Logical formLearned from3 sentences. A collision can be between some cars.Logical formLearned from3 sentences. A number of others may be injured in a head-on collision.Logical formLearned from3 sentences. A car may have a collision.Logical formLearned from3 sentences. A collision can be on a runway.Logical formLearned from3 sentences. A sub may undergo a collision.Logical formLearned from3 sentences. A collision can be between a (fighter jet).Logical formLearned from3 sentences. A collision can be between a (reconnaissance plane).Logical formLearned from3 sentences.