With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kris Wu is an actor in Beijing, China.
text_B: The World Transplant Games are an international multi-sport event , occurring every two years , organized by the World Transplant Games Federation -LRB- WTGF -RRB- .. multi-sport event. multi-sport event. World Transplant Games Federation. World Transplant Games Federation
not_related.