With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mike Tyson took part in games against Danny Williams.
text_B: Marco Torcivia -LRB- born 4 May 1982 -RRB- , is an Italian futsal player who plays for Acireale and the Italian national futsal team .. Acireale. Acireale Calcio a 5. Italian. Italy. futsal. futsal. player. Sportsperson. Italian national futsal team. Italy national futsal team
not_related.