With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jing Tian was born in July.
text_B: Marcus Rivers -LRB- born August 2 , 1989 -RRB- is a former American football wide receiver .. American football. American football. wide receiver. wide receiver. He played college football at the University of Buffalo .. Buffalo. Buffalo Bulls football. college football. college football. University of Buffalo. University of Buffalo. He signed with the Green Bay Packers as an undrafted free agent in 2012 .. Green Bay Packers. Green Bay Packers. undrafted free agent. undrafted free agent
not_related.