A substance can be in air.Logical formLearned from17 sentences. Substance may undergo concentration.Logical formLearned from17 sentences. Substances can be in use.Logical formLearned from17 sentences. Toxic substances may undergo concentration.Logical formLearned from17 sentences. A risk can be constituted-of-or-filled-with (substance abuse).Logical formLearned from17 sentences. A (substance stanozolol) can be banned.Logical formLearned from17 sentences. A substance may undergo an importation.Logical formLearned from17 sentences. A substance can be undisclosed.Logical formLearned from17 sentences. A nature may undergo substances.Logical formLearned from17 sentences. Substances may be introduced into food.Logical formLearned from17 sentences. A substance can be in food.Logical formLearned from17 sentences. Toxic substances may undergo a removal.Logical formLearned from17 sentences. A substance may be intended for use.Logical formLearned from17 sentences. A substance can be sensible.Logical formLearned from17 sentences. A struggle can be with (substance abuse).Logical formLearned from17 sentences.