user: Question: How many laps for ukyo katayama with a grid under 16?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['David Coulthard', 'Williams - Renault', 71.0, '1:41:52.145', 1.0]
SQL:

assistant: SELECT "Laps" FROM "Table" WHERE "Driver" = 'ukyo katayama' AND "Grid" < 16.0;