Dust may undergo observations.Logical formLearned from16 sentences. Some feet can be constituted-of-or-filled-with dust.Logical formLearned from16 sentences. A (coal dust) can be flammable.Logical formLearned from16 sentences. A (dust bowl) may pertain-to a us-state.Logical formLearned from16 sentences. A female may be covered in dust.Logical formLearned from16 sentences. Heaps can be constituted-of-or-filled-with dust.Logical formLearned from16 sentences. A band can be constituted-of-or-filled-with dust.Logical formLearned from16 sentences. A (coal dust) can be black.Logical formLearned from16 sentences. Ashes can be to dust.Logical formLearned from15 sentences. Dust can be powdered.Logical formLearned from15 sentences. (Dust clouds) can be dark.Logical formLearned from15 sentences. (Dust particles) can be charged.Logical formLearned from15 sentences. Dust can be in a solar system.Logical formLearned from15 sentences. Effects can be constituted-of-or-filled-with dust.Logical formLearned from15 sentences. Dusts may undergo an inhalation.Logical formLearned from15 sentences.