With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Usain Bolt is incapable of winning world records.
text_B: Rivoli Township is located in Mercer County , Illinois .. Illinois. Illinois. County. List of counties in Illinois. Mercer. Mercer County, Illinois. Mercer County. Mercer County, Illinois. As of the 2010 census , its population was 1,142 and it contained 516 housing units .. United States Census, 2010. Rivoli Township changed its name from North Pope Township sometime before 1921 .
not_related.