With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Imagine Dragons released their debut studio single in 2012.
text_B: Hexachlorocyclohexa-2 ,5 - dien-1-one , sometimes informally called hexachlorophenol -LRB- HCP -RRB- is an organochlorine compound .. organochlorine compound. organochlorine compound. It can be prepared from phenol .. phenol. phenol. Despite the informal name , the compound is not a phenol but is a ketone .. phenol. phenol. ketone. ketone. The informal name is derived from its method of preparation which includes phenol as a reagent .. phenol. phenol. reagent. reagent
not_related.