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

### Instruction:
What is the tie number in the game on 5 January 1986 where Exeter City is the away team?

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

### Response:
SELECT Tie no FROM table WHERE Date = 5 january 1986 AND Away team = exeter city