premise: Benzodiazepine is a genre of music.
hypothesis: Benzodiazepines ( BZD , BZs ) , sometimes called `` benzos '' , are a class of psychoactive drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring . Benzodiazepine dependence or benzodiazepine addiction is when one has developed one or more of either tolerance , withdrawal symptoms , drug seeking behaviors , such as continued use despite harmful effects , and maladaptive pattern of substance use , according to the DSM-IV .