With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Björk achieved a Best Actress Award.
text_B: The stage name Black Jack Mulligan , or a variation of it , has been used by  :. Black Jack Mulligan. Black Jack Mulligan. Blackjack Mulligan -LRB- 1942 -- 2016 -RRB- , American wrestler. Blackjack Mulligan. Blackjack Mulligan. Black Jack Mulligan -LRB- born 1940s -RRB- , English wrestler. Black Jack Mulligan. Black Jack Mulligan
not_related.