Premise: Óscar Gutiérrez ( born December 11 , 1974 ) , better known by his ring names Rey Mysterio Jr , or simply Rey Mysterio , is a Mexican-American professional wrestler . He is best known for his long tenure in WWE from July 2002 to February 2014 . Gutierrez was trained by his uncle Rey Misterio , Sr. , learning the high flying Lucha Libre style that has been his trademark . 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 is a human.
Label: ENTAILMENT