With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John Wayne Gacy Jr. was an arsonist.
text_B: Camp Kigali is a military compound in Rwanda , where 10 Belgian soldiers were killed on April 7 , 1994 , the day after the Rwandan Genocide began .. Rwanda. Rwanda. Rwandan Genocide. Rwandan Genocide
not_related.