user: Question: What were the total number of sales for the song 21 seconds?
Columns: ['Position', 'Song Title', 'Artist', 'Highest Position', 'Sales']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, "It Wasn't Me", 'Shaggy', 1.0, 1180700.0]
SQL:

assistant: SELECT "Sales" FROM "Table" WHERE "Song Title" = '21 seconds';