With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Billboard listed Imagine Dragons as top ranking in one of their list.
text_B: Antonino Dai -LRB- born 8 February 1984 -RRB- is an Italian football player who plays for Trapani .. Trapani. Trapani Calcio. Italian. Italy. football. association football
not_related.