user: Question: How many rounds have a time of 2:18?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Win', '14–8', 'Kyle Keeney', 'TKO (leg kick & punches)', 1.0, '0:50', 'Ft. Lauderdale, FL , United States']
SQL:

assistant: SELECT COUNT("Round") FROM "Table" WHERE "Time" = '2:18';