Question: How many nations participated in the Winter Olympics where Jesse Väänänen placed 22nd in the individual sprint event?
Sentence (from "2010 Winter Olympics"): The 2010 Winter Olympics, officially known as the XXI Olympic Winter Games (French: Les "XXIes Jeux olympiques d'hiver") and commonly known as Vancouver 2010, informally the 21st Winter Olympics, were a major international multi-sport event held from February 12 to 28, 2010, in Vancouver, Canada, with some events held in the surrounding suburbs of Richmond, West Vancouver and the University Endowment Lands, and in the nearby resort town of Whistler.
Relevant evidence: No