Substances can be foreign to a body.Logical formLearned from7 sentences. A substance may be found in blood.Logical formLearned from7 sentences. (Substance abuse issues) can be serious.Logical formLearned from7 sentences. A substance can be inhibitory.Logical formLearned from7 sentences. Substances can be in a bloodstream.Logical formLearned from7 sentences. A substance can be mucous.Logical formLearned from7 sentences. A substance may cause (birth defects).Logical formLearned from7 sentences. Demand can be for substances.Logical formLearned from7 sentences. Works may undergo a substance.Logical formLearned from7 sentences. A substance can be odoriferous.Logical formLearned from7 sentences. Mind may undergo a substance.Logical formLearned from7 sentences. Arsenic can be a substance.Logical formLearned from7 sentences. Sensitivity can be to substances.Logical formLearned from7 sentences. Words can be without substance.Logical formLearned from7 sentences. Withdrawal can be from substances.Logical formLearned from7 sentences.