A substance can be a powdered sugar.Logical formLearned from8 sentences. A building may receive a letter with a substance.Logical formLearned from8 sentences. A substance may be used in pharmaceutical products.Logical formLearned from8 sentences. Substances can be in (tobacco smoke).Logical formLearned from8 sentences. Dangerous substances may be knowned to mankind.Logical formLearned from8 sentences. A substance may be used during 1940s.Logical formLearned from8 sentences. A spate of letters may contain a substance.Logical formLearned from8 sentences. A job may undergo a substance.Logical formLearned from8 sentences. Vials can be constituted-of-or-filled-with substances.Logical formLearned from8 sentences. Substances may undergo thefts.Logical formLearned from8 sentences. An ability may pertain-to a substance.Logical formLearned from8 sentences. Some substances may be found.Logical formLearned from8 sentences. A program can be on (substance abuse).Logical formLearned from8 sentences. A substance can be lasting.Logical formLearned from8 sentences. Substances may undergo a proliferation.Logical formLearned from8 sentences.