Question: The 2010–11 Tour de Ski was the 5th edition of the Tour de Ski and took place from 31 December 2010 to which date, Swiss cross-country skier, Dario Cologna won the Men's class?
Sentence (from "Dario Cologna"): Dario Cologna (born 11 March 1986) is a Swiss cross-country skier.
Relevant evidence: Yes