With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Perfume: The Story of a Murderer had Ben Whishaw in it.
text_B: Rhinoprenes pentanemus , the Threadfin scat , is a species of ephippid native to the Pacific Ocean around Papua New Guinea and Australia .. species. species. ephippid. Ephippidae. Pacific Ocean. Pacific Ocean. Papua New Guinea. Papua New Guinea. Australia. Australia. This fish eats algae and also sewage .. algae. algae. sewage. sewage. This species grows to a length of 15 cm TL .. species. species. fish measurement. This species is the only known member of its genus .. species. species. genus. genus
not_related.