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

### Instruction:
With Sheffield United as the away team and the date, what home team has a tie no of 15?

### Inputs:
table_name: table, columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']

### Response:
SELECT Home team FROM table WHERE Tie no = 15 AND Away team = sheffield united AND Date = sheffield united