With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mammals are within the class Mammalia and are revered.
text_B: The 2016 Skate America was the first event of six in the 2016 -- 17 ISU Grand Prix of Figure Skating , a senior-level international invitational competition series .. Grand Prix. ISU Grand Prix of Figure Skating. Skate America. Skate America. It was held at the Sears Centre in Chicago , Illinois on October 21 -- 23 .. Chicago. Chicago. Illinois. Illinois. Sears Centre. Sears Centre. Medals were awarded in the disciplines of men 's singles , ladies ' singles , pair skating , and ice dancing .. pair skating. pair skating. ice dancing. ice dancing. Skaters earned points toward qualifying for the 2016 -- 17 Grand Prix Final .. Grand Prix. ISU Grand Prix of Figure Skating
not_related.