user: Question: How many positions are there in Canadian Nascar? 
Columns: ['Position', 'Driver', 'Points', 'Starts', 'Wins', 'Top 5s', 'Top 10s', 'Winnings ($)']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Andrew Ranger', 2190.0, 13.0, 6.0, 8.0, 13.0, 87100.0]
SQL:

assistant: SELECT COUNT("Position") FROM "Table";