With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dungeons & Dragons could be played with a ten-sided die.
text_B: Bob Russell -LRB- born 4 October 1945 -RRB- is a former Australian rules footballer who played with Melbourne in the Victorian Football League -LRB- VFL -RRB- .. Melbourne. Melbourne Football Club. Victorian Football League. Australian Football League
not_related.