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

### Instruction:
How long did the game go that was played with the Houston Oilers at home?

### Inputs:
table_name: table, columns: ['Length of game', 'Date', 'Away team', 'Score', 'Home team']

### Response:
SELECT Length of game FROM table WHERE Home team = houston oilers