Comets may undergo collisions.Logical formLearned from4 sentences. Head-on collisions can be between some (passenger cars).Logical formLearned from4 sentences. Collisions can be with others.Logical formLearned from4 sentences. (Naming collisions) can be with names.Logical formLearned from4 sentences. Right whales may face risks from (ship collisions).Logical formLearned from4 sentences. Energies can be in collisions.Logical formLearned from4 sentences. Collisions may occur during some lighting.Logical formLearned from4 sentences. Collisions may involve (disk galaxies).Logical formLearned from4 sentences. Particles may undergo a collision.Logical formLearned from4 sentences. A collision can be on the ground.Logical formLearned from4 sentences. A collision can be with an administration.Logical formLearned from4 sentences. Factors may contribute to a collision.Logical formLearned from4 sentences. A singer can be on a (collision course).Logical formLearned from4 sentences. A (collision course) can be with a family.Logical formLearned from4 sentences. A male may have some collisions.Logical formLearned from4 sentences.