With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Sopranos consists of 86 episodes.
text_B: NOTOC. `` The Circle '' is the 22nd episode of the American science fiction television series Star Trek  : Deep Space Nine .. episode. episode. science fiction. science fiction. television series. television series. It is the second in a three-part story arc , and also the second episode of the second season .. episode. episode. story arc. story arc. second season. Star Trek : Deep Space Nine ( season 2 ). A political faction known as The Circle begins a full-scale coup on Bajor 's government .
not_related.