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

### Instruction:
How many grids have a time of +1:21.239 and more than 25 laps?

### Inputs:
table_name: table, columns: ['Rider', 'Manufacturer', 'Laps', 'Time/Retired', 'Grid']

### Response:
SELECT COUNT Grid FROM table WHERE Time/Retired = +1:21.239 AND Laps > 25