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

### Instruction:
Who were the semifinalists in the week of 13 November when the runner-up was Pat Du Pré?

### Inputs:
table_name: table, columns: ['Week of', 'Tournament', 'Champion', 'Runner-up', 'Semifinalists', 'Quarterfinalists']

### Response:
SELECT Semifinalists FROM table WHERE Week of = 13 November AND Runner-up = Pat Du Pré