A substance can be for a period.Logical formLearned from10 sentences. A dendritic cell may produce some substance.Logical formLearned from10 sentences. A substance may give cells a signal.Logical formLearned from10 sentences. Some substance can be on a surface.Logical formLearned from10 sentences. Substances may accumulate_in a liver.Logical formLearned from10 sentences. A (density range) can be for a substance.Logical formLearned from10 sentences. A substance can be addictive.Logical formLearned from10 sentences. A role can be constituted-of-or-filled-with substance.Logical formLearned from10 sentences. An idea may undergo a substance.Logical formLearned from10 sentences. A substance may be destroyed.Logical formLearned from10 sentences. Substances may play a role.Logical formLearned from10 sentences. Substances can be in green tea.Logical formLearned from10 sentences. Problems may be associated with (substance abuse).Logical formLearned from10 sentences. Controlled substances may undergo a legalization.Logical formLearned from10 sentences. A (substance abuse) can be concurrent.Logical formLearned from10 sentences.