With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Warren Buffett began the Buffett Foundation.
text_B: Scott Davidson -LRB- born April 9 , 1982 -RRB- is a lacrosse player for the Colorado Mammoth in the National Lacrosse League .. Colorado Mammoth. Colorado Mammoth. lacrosse. indoor lacrosse. National Lacrosse League. National Lacrosse League
not_related.