With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John Cena won the World Heavyweight Championship in 2000.
text_B: The World Heavyweight Championship was a professional wrestling world heavyweight championship owned by WWE .. WWE. WWE. professional wrestling. professional wrestling. world heavyweight championship. Championship ( professional wrestling )#World championships. It was one of two top championships in WWE from 2002 to 2006 and from 2010 to 2013 , complementing the WWE Championship , and one of three top championships from 2006 to 2010 with the addition of the ECW World Heavyweight Championship .. WWE. WWE. WWE Championship. WWE Championship. ECW World Heavyweight Championship. ECW World Heavyweight Championship. The title was established under the Raw brand in 2002 , after Raw and SmackDown became distinct brands under WWE , and moved between both brands on different occasions -LRB- mainly as a result of the WWE draft -RRB- until August 29 , 2011 , when all programming became full roster `` supershows '' .. WWE. WWE. Raw. WWE Raw. SmackDown. WWE SmackDown. brands under WWE. WWE Brand Extension. WWE draft. WWE draft. The World Heavyweight Championship was retired at the WWE pay-per-view , TLC  : Tables , Ladders & Chairs , on December 15 , 2013 , when it was unified with the WWE Championship .. WWE. WWE. WWE Championship. WWE Championship. The unified championship became the WWE World Heavyweight Championship , retaining the lineage of the WWE Championship .. WWE. WWE. WWE Championship. WWE Championship. Triple H was the inaugural World Heavyweight Champion , with Randy Orton being the last .. Triple H. Triple H. Randy Orton. Randy Orton. The title was one of six to be represented by the historic Big Gold Belt , first introduced in 1986 .. Big Gold Belt. Big Gold Belt. Its heritage can be traced back to the first world heavyweight championship , thereby giving the belt a legacy over 100 years old , the oldest in the world .. world heavyweight championship. Championship ( professional wrestling )#World championships. the first world heavyweight championship. World Heavyweight Wrestling Championship ( Original version )
related.