Arguments may undergo a substance.Logical formLearned from8 sentences. Substances may be derived from plants.Logical formLearned from8 sentences. Experiments can be with substances.Logical formLearned from8 sentences. A lesson may undergo a substance.Logical formLearned from8 sentences. A substance can be loose.Logical formLearned from8 sentences. A passage may pertain-to controlled substances.Logical formLearned from8 sentences. A substance may be listed in schedule.Logical formLearned from8 sentences. Hazardous substances may undergo a use.Logical formLearned from8 sentences. Organic substances can be persistent.Logical formLearned from8 sentences. Substance may undergo a waste.Logical formLearned from8 sentences. Toxic substances can be hazardous.Logical formLearned from8 sentences. A substance can be imperfect.Logical formLearned from8 sentences. Substances may undergo determination.Logical formLearned from8 sentences. Substances can be extracellular.Logical formLearned from8 sentences. Help can be with (substance abuse).Logical formLearned from8 sentences.