With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: James Mangold directed a 2013 superhero TV show.
text_B: The Taihoku Air Strike was an air raid by the military of the Republic of China against the metropolitan perimeter of Taihoku -LRB- modern-day Taipei -RRB- , the capital of Japanese Taiwan , during January 1938 .. air raid. strategic bombing. Republic of China. Republic of China ( 1912–49 ). Taipei. Taipei. Japanese Taiwan. Taiwan under Japanese rule. The raid was the first attack on Imperial Japanese territory during the course of World War II , and one of the few offensive operations conducted by China directly against Japan during the course of the war .. Imperial Japanese. Empire of Japan
not_related.