A shell may crash.Logical formLearned from30 sentences. A helicopter may crash.Logical formLearned from30 sentences. A vehicle may crash.Logical formLearned from30 sentences. A motorcycle may crash.Logical formLearned from30 sentences. Some (passenger jets) may crash.Logical formLearned from30 sentences. A (navy helicopter) may crash.Logical formLearned from29 sentences. A warplane may crash.Logical formLearned from29 sentences. Some riders may crash.Logical formLearned from29 sentences. Some buses may crash.Logical formLearned from29 sentences. Lips may crash.Logical formLearned from29 sentences. Waves may crash against a shore.Logical formLearned from29 sentences. A female may crash at a place.Logical formLearned from29 sentences. Hard drives may crash.Logical formLearned from29 sentences. Some plane may crash in a us-state.Logical formLearned from29 sentences. A person may crash into a wall.Logical formLearned from29 sentences.