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

### Instruction:
How many races had the pole position Alain Prost and the race winner Keke Rosberg?

### Inputs:
table_name: table, columns: ['Rnd', 'Race', 'Date', 'Location', 'Pole Position', 'Fastest Lap', 'Race Winner', 'Constructor', 'Report']

### Response:
SELECT COUNT Race FROM table WHERE Pole Position = Alain Prost AND Race Winner = Keke Rosberg