A disappearance may be caused by a collision.Logical formLearned from6 sentences. A collision can be with a private jet.Logical formLearned from6 sentences. A collision can be with a pedestrian.Logical formLearned from6 sentences. A collision can be in a minute.Logical formLearned from6 sentences. Events may lead to a collision.Logical formLearned from6 sentences. Reports may describe a collision.Logical formLearned from6 sentences. A collision can be between a jetliner.Logical formLearned from6 sentences. A (ship collision) may pertain-to a weekday.Logical formLearned from6 sentences. A collision can be terrible.Logical formLearned from6 sentences. Some cars may be involved in a collision.Logical formLearned from6 sentences. A collision can be between planes.Logical formLearned from6 sentences. A factor can be in a head-on collision.Logical formLearned from6 sentences. A plane may have a (collision warning system).Logical formLearned from6 sentences. (Collision avoidance systems) can be airborne.Logical formLearned from6 sentences. A (truck collision) may be killed.Logical formLearned from6 sentences.