user: Question: Which class corresponds to more than 2 points, wins greater than 0, and a year earlier than 1973?
Columns: ['Year', 'Class', 'Team', 'Points', 'Wins']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1961.0, '500cc', 'Norton', 3.0, 0.0]
SQL:

assistant: SELECT "Class" FROM "Table" WHERE "Points" > 2.0 AND "Year" < 1973.0 AND "Wins" > 0.0;