user: Question: What was the pic for Canada for player Yvon Bouillon earlier than 1974?
Columns: ['Year', 'Round', 'Pick', 'Player', 'Nationality']
Types: ['real', 'real', 'real', 'text', 'text']
Sample row: [1973.0, 1.0, 6.0, 'John Rogers Category:Articles with hCards', 'Canada']
SQL:

assistant: SELECT "Pick" FROM "Table" WHERE "Nationality" = 'Canada' AND "Year" < 1974.0 AND "Player" = 'Yvon Bouillon';