Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many fast laps are in 6 races with 30 points in the World Series by Nissan?

### Inputs:
table_name: table, columns: ['Season', 'Series', 'Team', 'Races', 'wins', 'Fast laps', 'Points', 'Pos.']

### Response:
SELECT Fast laps FROM table WHERE Series = world series by nissan AND Races = 6 AND Points = 30