A molecule may pertain-to a substance.Logical formLearned from25 sentences. A substance can be harmful.Logical formLearned from25 sentences. Exposure can be to a substance.Logical formLearned from25 sentences. Exposure to a substance may harm a person.Logical formLearned from25 sentences. Persons may be exposed to hazardous substances.Logical formLearned from25 sentences. Releases can be constituted-of-or-filled-with substances.Logical formLearned from25 sentences. Effects may pertain-to a (substance abuse).Logical formLearned from25 sentences. A drug can be a substance.Logical formLearned from25 sentences. Substances may undergo a classification.Logical formLearned from25 sentences. (Fatty substances) can be in blood.Logical formLearned from25 sentences. A result can be constituted-of-or-filled-with (substance abuse).Logical formLearned from25 sentences. Effects can be constituted-of-or-filled-with toxic substances.Logical formLearned from25 sentences. A substance can be dietary.Logical formLearned from25 sentences. Substances may undergo a flow.Logical formLearned from25 sentences. A (substance release) can be hazardous.Logical formLearned from25 sentences.