With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Steffi Graff is a coach.
text_B: Cullison is a city in Pratt County , Kansas , United States .. Pratt County. Pratt County, Kansas. Kansas. Kansas. United States. United States. County. List of counties in Kansas. Pratt. Pratt County, Kansas. As of the 2010 census , the city population was 101 .. 2010 United States Census. 2010 census. 2010 United States Census
not_related.