With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: New Horizons was sent to record data on Jupiter during a flyby.
text_B: Justin Michael Sandy -LRB- born February 22 , 1982 -RRB- is a former American football safety .. American football. American football. safety. Safety ( American football position ). He was signed by the Tennessee Titans as an undrafted free agent in 2004 .. Tennessee Titans. Tennessee Titans. undrafted free agent. undrafted free agent. He played college football at Northern Iowa .. Northern Iowa. Northern Iowa Panthers football. college football. college football
not_related.