Collisions can be among (property names).Logical formLearned from3 sentences. Some (head injuries) may involve (traffic collisions).Logical formLearned from3 sentences. Collisions can be with (helium atoms).Logical formLearned from3 sentences. Some collisions can be between particles.Logical formLearned from3 sentences. A product may pertain-to collisions.Logical formLearned from3 sentences. Collisions may offer clues to a birth of planetary systems.Logical formLearned from3 sentences. Collisions can be among objects.Logical formLearned from3 sentences. (Dust disks) may be replenished by collisions.Logical formLearned from3 sentences. Collisions may be excavated.Logical formLearned from3 sentences. Regions may be characterised by (particle collisions).Logical formLearned from3 sentences. An average can be constituted-of-or-filled-with some collisions.Logical formLearned from3 sentences. A result can be constituted-of-or-filled-with (vehicle collisions).Logical formLearned from3 sentences. Times can be constituted-of-or-filled-with collisions.Logical formLearned from3 sentences. A number of collisions may be reduced.Logical formLearned from3 sentences. Rules can be for a prevention of collisions.Logical formLearned from3 sentences.