With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Martina Navratilova is a retiree.
text_B: James R. Barnett -LRB- May 31 , 1842 -- January 20 , 1917 -RRB- was a member of the Wisconsin State Assembly .. Wisconsin State Assembly. Wisconsin State Assembly
not_related.