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

### Instruction:
How many horses are mentioned competing in 1985?

### Inputs:
table_name: table, columns: ['Year', 'Horse', 'Driver', 'Trainer', 'Country of owner', 'Odds of winner', 'Winning time (km rate)']

### Response:
SELECT COUNT Horse FROM table WHERE Year = 1985