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

### Instruction:
HOw many jockeys had eoin harty as a trainer

### Inputs:
table_name: table, columns: ['Post', 'Horse name', 'Trainer', 'Jockey', 'Opening Odds', 'Starting Odds', 'Finishing Pos.']

### Response:
SELECT COUNT Jockey FROM table WHERE Trainer = Eoin Harty