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

### Instruction:
What surface was played on with a score of 6–4, 6–3 and on 4 May 1992?

### Inputs:
table_name: table, columns: ['Date', 'Tournament', 'Surface', 'Partnering', 'Opponent in the final', 'Score']

### Response:
SELECT Surface FROM table WHERE Score = 6–4, 6–3 AND Date = 4 may 1992