With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Warren Buffett has pledged 99 percent of his fortune to be given away.
text_B: The Hip Hop Congress -LRB- HHC -RRB- is a non profit , international grassroots organization .. non profit. non profit organization. grassroots. grassroots. Its mission is to evolve hip hop culture by inspiring social action and creativity within the community .. hip hop culture. hip hop culture. Its headquarters is located in San Jose , California .
not_related.