Premise: Rey Mysterio . He is best known for his long tenure in WWE from July 2002 to February 2014 . He is also known for his work in Extreme Championship Wrestling ( ECW ) , AAA , and World Championship Wrestling ( WCW ) . In WWE , Mysterio is a three-time world champion , having held WWE 's World Heavyweight Championship twice and the WWE Championship once .
Hypothesis: Rey Mysterio wrestled professionally.
Label: ENTAILMENT