With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Some Assyrian people speak Niger-Congo languages.
text_B: The 2009 election for the leadership of the AFL-CIO occurred following the announcement of incumbent president John Sweeney 's retirement .. AFL-CIO. AFL-CIO. John Sweeney. John Sweeney ( labor leader ). The election took place during the 26th AFL-CIO National Convention in Pittsburgh .. AFL-CIO. AFL-CIO. The event was preceded by a 2008 speech at which then-Secretary-Treasurer Richard Trumka had blasted the perceived racism being directed against 2008 Democratic presidential candidate Barack Obama , increasing his profile both inside and outside the labor movement .. Richard Trumka. Richard Trumka. Barack Obama. Barack Obama. Trumka , who had served as Secretary-Treasurer since first being elected in 1995 , received no contest for the position of president .
not_related.