With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Al Gore served as Vice President to Bill Clinton.
text_B: James Malett B.D. -LRB- d. 1543 -RRB- was a Canon of Windsor from 1514 to 1543 .. Canon of Windsor. Dean and Canons of Windsor
not_related.