Premise: Heroin , also known as diamorphine among other names , is an opiate most commonly used as a recreational drug for its euphoric effects . An estimated 17 million people as of 2015 use opiates such as heroin , which together with opioids resulted in 122,000 deaths . Internationally , heroin is controlled under Schedules I and IV of the Single Convention on Narcotic Drugs .
Hypothesis: Heroin is used as a drug.
Label: ENTAILMENT