user: Question: What is the mean number of laps for the constructor Ferrari when the time/retired was Fuel pressure?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Mika Häkkinen', 'McLaren - Mercedes', 44.0, '1:28:14.494', 1.0]
SQL:

assistant: SELECT AVG("Laps") FROM "Table" WHERE "Constructor" = 'Ferrari' AND "Time/Retired" = 'Fuel pressure';