With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Machine Gun Kelly is Machine Gun Kelly's birth name.
text_B: The Yellow Star  : The Persecution of the Jews in Europe 1933-45 -LRB- Der Gelbe Stern -RRB- is a 1980 West German documentary film directed by .. documentary film. documentary film. It was nominated for an Academy Award for Best Documentary Feature .. Academy Award. Academy Award. Best Documentary Feature. Academy Award for Documentary Feature
not_related.