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

### Instruction:
Who was the home team when Sheffield United was the away team and the date was also Sheffield United?

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

### Response:
SELECT Home team FROM table WHERE Away team = sheffield united AND Date = sheffield united