With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Arya Stark is often mistaken for a girl.
text_B: A jack or knave is a playing card which , in traditional French and English decks , pictures a man in the traditional or historic aristocratic dress generally associated with Europe of the 16th or 17th century .. playing card. playing card. The usual rank of a jack , within its suit , plays as if it were an 11 -LRB- that is , between the 10 and the queen -RRB- .. suit. suit ( cards ). queen. Queen ( playing card ). As the lowest face -LRB- or `` court '' -RRB- card , the jack often represents a minimum standard -- for example , many poker games require a minimum hand of a pair of jacks -LRB- `` jacks or better '' -RRB- in order to continue play .. poker games. List of poker variants. hand. Poker hand
not_related.