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

### Instruction:
What is the Tournament with a Margin of victory that was 4 strokes?

### Inputs:
table_name: table, columns: ['Date', 'Tournament', 'Winning score', 'To par', 'Margin of victory']

### Response:
SELECT Tournament FROM table WHERE Margin of victory = 4 strokes