With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The term Albanian diaspora refers to ethnic Albanians living in North America.
text_B: The Dortmund Sparkassen Chess Meeting is an elite chess tournament held every summer in Dortmund , Germany .. chess. chess. Dortmund. Dortmund. Germany. Germany. Dortmund is an invite-only event , with the exception that one slot at Dortmund is awarded to the winner of the annual Aeroflot Open in Moscow .. Dortmund. Dortmund. Aeroflot Open. Aeroflot Open. Moscow. Moscow. The tournament is usually played in a round-robin or double round-robin format .. round-robin. round-robin tournament. However , it took the form of a series of heads-up matches in 2002 and 2004 .. The 2002 Dortmund event was also notable in that it served as the Candidates Tournament for the Classical World Chess Championship 2004 .. Dortmund. Dortmund. Candidates Tournament. Candidates Tournament. Classical World Chess Championship 2004. Classical World Chess Championship 2004. Peter Leko won , defeating Veselin Topalov in the finals .. Peter Leko. Peter Leko. Veselin Topalov. Veselin Topalov. The title sponsor is Sparkasse Dortmund .. Dortmund. Dortmund
not_related.