With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Calvin Harris is an activist.
text_B: Steven Scott Clevenger -LRB- born April 5 , 1986 -RRB- is an American professional baseball catcher who is a free agent .. professional baseball. professional baseball. catcher. catcher. He has played in Major League Baseball -LRB- MLB -RRB- for the Chicago Cubs , Baltimore Orioles , and Seattle Mariners .. Chicago Cubs. Chicago Cubs. Baltimore Orioles. Baltimore Orioles. Seattle Mariners. Seattle Mariners. Major League Baseball. Major League Baseball
not_related.