With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gong Yoo's birthday is July 10, 1979.
text_B: Polk Township is an inactive township in Madison County , in the U.S. state of Missouri .. township. civil township. Madison County. Madison County, Missouri. U.S. state. U.S. state. Missouri. Missouri. Polk Township was established in 1857 , and named after Charles K. Polk , a poioneer settler .
not_related.