With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Young MC is regarded as a rapper.
text_B: Posey Green Lester -LRB- March 12 , 1850 -- February 9 , 1929 -RRB- was a U.S. Representative from Virginia .. Virginia. Virginia. U.S. Representative. United States House of Representatives
not_related.