With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Wrath of the Titans premiered in the United States.
text_B: The 27th International 500-Mile Sweepstakes Race was held at the Indianapolis Motor Speedway on May 30 , 1939 .. Indianapolis Motor Speedway. Indianapolis Motor Speedway. The race was won by the number two car of Wilbur Shaw , who started in the third position .. Wilbur Shaw. Wilbur Shaw. The race was notable for a three car accident on lap 109 , when Floyd Roberts , the reigning champion , was killed when his car went through the wooden outer wall at over 100 mi an hour at the backstretch .. Floyd Roberts. Floyd Roberts. In Louis Meyer 's final Indy 500 , he too would crash at the backstretch at over 100 mi an hour , but he walked away unharmed .. Louis Meyer. Louis Meyer
not_related.