With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Overwatch's playable characters are divided into categories.
text_B: Texans for Truth -LRB- TfT -RRB- was a political advocacy organization , registered under Section 527 of the United States tax code , formed to oppose George W. Bush 's re-election efforts in the 2004 presidential election .. Section 527. 527 group. United States. United States. tax. tax. George W. Bush. George W. Bush. 2004 presidential election. U.S. presidential election, 2004. In September 2004 , the group began airing advertisements in various swing states that questioned Bush 's National Guard record , particularly as to whether or not he fulfilled his obligations to serve .
not_related.