user: Question: How many singles does Lisa Stansfield have?
Columns: ['Entered [A ]', 'Weeks in top 10', 'Single', 'Artist', 'Peak', 'Peak reached [A ]', 'Weeks at peak']
Types: ['text', 'real', 'text', 'text', 'real', 'text', 'real']
Sample row: ['7 Cannot handle non-empty timestamp argument!', 5.0, '" Touch Me "', '49ers', 3.0, '14 Cannot handle non-empty timestamp argument!', 1.0]
SQL:

assistant: SELECT COUNT("Single") FROM "Table" WHERE "Artist" = 'Lisa Stansfield';