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

### Instruction:
What is the championship when the margin was 2 strokes, there were 54 holes with a 1 shot lead, and the runner-up was David Duval?

### Inputs:
table_name: table, columns: ['Year', 'Championship', '54 holes', 'Winning score', 'Margin', 'Runner(s)-up']

### Response:
SELECT Championship FROM table WHERE Margin = 2 strokes AND 54 holes = 1 shot lead AND Runner(s)-up = david duval