original question: What's the family name of [Toller Cranston]?
answer: cranston
answer type: Family name.
auxiliary information: Toller Shalitoe Montague Cranston, CM was a Canadian figure skater and painter. He won the 1971‚Äì1976 Canadian national championships, the 1974 World bronze medal and the 1976 Olympic bronze medal. Despite never winning at the World Figure Skating Championships due to his poor compulsory figures, he won the small medal for free skating at the 1972 and 1974 championships. Cranston is credited by many with having brought a new level of artistry to men's figure skating.
[Toller Cranston] has what for a family name?