With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: 7 Things is a song by a German singer-songwriter.
text_B: The 1978 Talladega 500 was a NASCAR Winston Cup Series racing event that took place on August 6 , 1978 , at Alabama International Motor Speedway in Talladega , Alabama .. Alabama International Motor Speedway. Talladega Superspeedway. Talladega 500. Talladega 500 ( Fall Race ). NASCAR. NASCAR. Winston Cup Series. Sprint Cup Series. By 1980 , NASCAR had completely stopped tracking the year model of all the vehicles and most teams did not take stock cars to the track under their own power anymore .. NASCAR. NASCAR
not_related.