Question: What is the birthdate of this Canadian former professional ice hockey player, who played in the National Hockey League for 12 seasons and scored the Cup-winning goal in the 1970 Stanley Cup Finals?
Sentence (from "Bob Johnson (ice hockey, born 1931)"): During his time as the head coach at Wisconsin, Johnson also coached the United States men's national ice hockey team at the 1976 Winter Olympics and seven other major championships, including the Canada Cup and IIHF World Championships.
Relevant evidence: No