With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Batman was released by 20th Century Fox.
text_B: The 1940 El Centro earthquake -LRB- or 1940 Imperial Valley earthquake -RRB- occurred at 21 :35 Pacific Standard Time on May 18 -LRB- 05 :35 UTC on May 19 -RRB- in the Imperial Valley in southeastern Southern California near the international border of the United States and Mexico .. Pacific Standard Time. Pacific Standard Time. UTC. coordinated universal time. Imperial Valley. Imperial Valley. Southern California. Southern California. international border. United States - Mexico border. Mexico. Mexico. It had a moment magnitude of 6.9 and a maximum perceived intensity of X -LRB- Extreme -RRB- on the Mercalli intensity scale .. Mercalli intensity scale. Mercalli intensity scale. It was the first major earthquake to be recorded by a strong-motion seismograph located next to a fault rupture .. seismograph. seismograph. The earthquake was characterized as a typical moderate-sized destructive event with a complex energy release signature .. It was the strongest recorded earthquake to hit the Imperial Valley , and caused widespread damage to irrigation systems and led to the deaths of nine people .. Imperial Valley. Imperial Valley
not_related.