With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tommy Chong is a comedian and actor.
text_B: Henry James Priestley -LRB- 10 April 1883 -- 26 February 1932 -RRB- was the first Professor of Mathematics at the University of Queensland .. University of Queensland. University of Queensland
not_related.