A crystal can be broken.Logical formLearned from18 sentences. Streets may be littered with broken glass.Logical formLearned from18 sentences. Hills can be broken.Logical formLearned from18 sentences. A symmetry can be broken.Logical formLearned from18 sentences. An ashtray can be broken.Logical formLearned from18 sentences. A link can be broken.Logical formLearned from18 sentences. A (spy satellite) can be broken.Logical formLearned from18 sentences. A song can be broken.Logical formLearned from18 sentences. A (drill bit) can be broken.Logical formLearned from18 sentences. Power can be broken.Logical formLearned from18 sentences. Faces may be led through a maze of broken glass.Logical formLearned from18 sentences. Benches can be broken.Logical formLearned from18 sentences. Ships can be broken.Logical formLearned from18 sentences. Tracks can be broken.Logical formLearned from18 sentences. (Oxygen generators) can be broken.Logical formLearned from18 sentences.