With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Russell Crowe was in a film in 2005.
text_B: Surf Candy is style of artificial fly used primarily in saltwater fly fishing to imitate small sand eels and other small baitfish .. artificial fly. artificial fly. fly fishing. fly fishing. baitfish. baitfish. The style was developed by American fly tier Bob Popovics in the 1970s for bluefish , tuna and striped bass on the Atlantic coast .. bluefish. bluefish. tuna. tuna. striped bass. striped bass
not_related.