A (heroin hawker) can be small-time.Logical formLearned from6 sentences. A source can be for heroin.Logical formLearned from6 sentences. Heroin may be produced in a continental-region.Logical formLearned from6 sentences. A purity can be for heroin.Logical formLearned from6 sentences. Heroin may be administered.Logical formLearned from6 sentences. A heroin can be international.Logical formLearned from6 sentences. A person may overdose on heroin.Logical formLearned from6 sentences. Heroin may undergo an introduction.Logical formLearned from6 sentences. A male may buy heroin.Logical formLearned from6 sentences. (Heroin users) can be hard-core.Logical formLearned from6 sentences. A male can be (heroin dealer).Logical formLearned from6 sentences. A female may get hooked on heroin.Logical formLearned from6 sentences. An increase can be in (heroin use).Logical formLearned from6 sentences. Heroin may be manufactured.Logical formLearned from6 sentences. Some grains can be constituted-of-or-filled-with heroin.Logical formLearned from6 sentences.