Substances can be impure.Logical formLearned from16 sentences. A risk can be for (substance abuse).Logical formLearned from16 sentences. A supply may pertain-to a substance.Logical formLearned from16 sentences. Substances can be with effects.Logical formLearned from16 sentences. A form can be constituted-of-or-filled-with (substance abuse).Logical formLearned from16 sentences. A substance may undergo a formation.Logical formLearned from16 sentences. A (chemical substance) can be toxic.Logical formLearned from16 sentences. Hazardous substances may undergo storage.Logical formLearned from16 sentences. An emergence may pertain-to a substance.Logical formLearned from16 sentences. Testing can be positive to a substance.Logical formLearned from16 sentences. Respect can be to substances.Logical formLearned from16 sentences. Persons may be exposed to substances.Logical formLearned from16 sentences. A substance can be on a floor.Logical formLearned from16 sentences. A male may find a substance.Logical formLearned from16 sentences. A female may test positive for a substance.Logical formLearned from16 sentences.