With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tom Well played a superhero.
text_B: Karl Moore may refer to  :. Karl Moore -LRB- footballer -RRB- -LRB- born 1988 -RRB- , Irish footballer. Karl Moore -LRB- academic -RRB- , associate professor at McGill University
not_related.