Question: Saint-Isidore, Montérégie, Quebec is the hometown of a mixed martial arts champion who retired what year ?
Sentence (from "Georges St-Pierre"): Georges St-Pierre (] ; born May 19, 1981), often referred to as GSP, is a Canadian mixed martial artist (MMA) and a three-time former Welterweight Champion of the Ultimate Fighting Championship (UFC), having won the title twice in 2006 and 2008, as well as an Interim title in 2007.
Relevant evidence: No