user: Question: How many positions drafted for the Minnesota North Stars?
Columns: ['Pick #', 'Player', 'Position', 'Nationality', 'NHL team', 'College/junior/club team']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [64.0, 'Mark Brownschidle', 'Defence', 'United States', 'Winnipeg Jets', 'Boston University (NCAA)']
SQL:

assistant: SELECT COUNT("Position") FROM "Table" WHERE "NHL team" = 'Minnesota North Stars';