user: Question: How many teams are listed for February 18?
Columns: ['Game', 'Date', 'Team', 'Score', 'High points', 'High rebounds', 'High assists', 'Location Attendance', 'Record']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [45.0, 'February 1', 'L.A. Lakers', 'L 83–84 (OT)', 'Vince Carter (27)', 'Chris Bosh (14)', 'Morris Peterson (4)', 'Air Canada Centre 20,116', '21–24']
SQL:

assistant: SELECT COUNT("Team") FROM "Table" WHERE "Date" = 'February 18';