user: Question: What College/junior/club had a player of United States nationality drafted by the Toronto Maple Leafs?
Columns: ['Pick #', 'Player', 'Position', 'Nationality', 'NHL team', 'College/junior/club team']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['85', 'Al Simmons', 'Defence', 'Canada', 'California Golden Seals', 'Winnipeg Jets (WCHL)']
SQL:

assistant: SELECT "College/junior/club team" FROM "Table" WHERE "NHL team" = 'Toronto Maple Leafs' AND "Nationality" = 'United States';