Attempts can be at collisions.Logical formLearned from4 sentences. Collisions may herald a new era.Logical formLearned from4 sentences. A record can be for collisions.Logical formLearned from4 sentences. Collisions may be confirmed.Logical formLearned from4 sentences. A collision may be obscured by spray.Logical formLearned from4 sentences. An expert can be on collisions.Logical formLearned from4 sentences. A vessel may sink after a collision.Logical formLearned from4 sentences. An (atom smasher) may record collisions of protons.Logical formLearned from4 sentences. Operators may plan collisions.Logical formLearned from4 sentences. Collisions can be unusual.Logical formLearned from4 sentences. A collision may kill power.Logical formLearned from4 sentences. A collision can be with some aircrafts.Logical formLearned from4 sentences. Some tourists may be killed in an (air collision).Logical formLearned from4 sentences. A danger of collisions may receive scrutiny.Logical formLearned from4 sentences. A train may trigger a collision.Logical formLearned from4 sentences.