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

### Instruction:
What was sebastian kawa's average speed with Diana 2?

### Inputs:
table_name: table, columns: ['Position', 'Pilot', 'Glider', 'Speed', 'Distance']

### Response:
SELECT Speed FROM table WHERE Glider = diana 2 AND Pilot = sebastian kawa