Addicts may exchange syringes.Logical formLearned from9 sentences. An experiment may provide addicts with heroin.Logical formLearned from9 sentences. Methadone may work for hundreds of thousands of (heroin addicts).Logical formLearned from9 sentences. Policies may reduce harm to some addicts.Logical formLearned from9 sentences. Some buyers can be addicts.Logical formLearned from9 sentences. Residents may want addicts.Logical formLearned from9 sentences. A (heroin addict) can be in a US-city.Logical formLearned from9 sentences. A (drug addict) can be pregnant.Logical formLearned from9 sentences. A (heroin addict) can be reformed.Logical formLearned from9 sentences. An addict can be black.Logical formLearned from9 sentences. A (drug addict) can be black.Logical formLearned from9 sentences. Some addicts may report that something-is-the-case.Logical formLearned from9 sentences. A sequel may pertain-to a (cocaine addict).Logical formLearned from9 sentences. Addicts may commit crimes.Logical formLearned from9 sentences. Large numbers can be constituted-of-or-filled-with addicts.Logical formLearned from9 sentences.