Question: Richard Callaghan was the coach to the figure skater who won an Olympic gold in what year?
Sentence (from "Tara Lipinski"): She is the youngest person—by 32 days—ever to win a World Figure Skating title, doing so at the age of 14 years, 9 months and 10 days, and the youngest Olympic gold medalist in the individual ladies' singles event, having won in Nagano, Japan, on February 20, 1998, at the age of 15 years, 8 months, and 10 days.
Relevant evidence: No