Question: Which organization is this American professional wrestler and former professional mixed martial artist, professional American football player and amateur wrestler born in 1977, who defended his Ultimate Fighting Championship twice, signed with?
Sentence (from "Brock Lesnar"): Brock Edward Lesnar ( ; born July 12, 1977) is an American professional wrestler and former professional mixed martial artist, professional American football player and amateur wrestler who is currently signed with WWE.
Relevant evidence: Yes