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

### Instruction:
Which Match played in a Location of San Francisco has a Competition of Semifinal?

### Inputs:
table_name: table, columns: ['Match', 'Date', 'Location', 'Lineup', 'Result', 'Competition']

### Response:
SELECT Match FROM table WHERE Competition = semifinal AND Location = san francisco