A (collision course) can be fresh.Logical formLearned from10 sentences. A collision can be with a warhead.Logical formLearned from10 sentences. A collision can be between an express train.Logical formLearned from9 sentences. A head-on collision can be constituted-of-or-filled-with some buses.Logical formLearned from9 sentences. Some planes can be on a (collision course).Logical formLearned from9 sentences. A collision can be strong.Logical formLearned from9 sentences. A collision can be between planes.Logical formLearned from9 sentences. A head-on collision can be between some (passenger trains).Logical formLearned from9 sentences. Buses may undergo a collision.Logical formLearned from9 sentences. A collision can be intentional.Logical formLearned from9 sentences. A sequence can be constituted-of-or-filled-with collisions.Logical formLearned from9 sentences. Collisions can be infrequent.Logical formLearned from9 sentences. A number of collisions may increase.Logical formLearned from9 sentences. Collisions can be with trees.Logical formLearned from9 sentences. (Energy collisions) can be constituted-of-or-filled-with protons.Logical formLearned from9 sentences.