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

### Instruction:
When (river garry) is the hr name how many builts are there?

### Inputs:
table_name: table, columns: ['HR no.', 'HR name', 'CR no.', 'LMS no.', 'Built', 'Works', 'Withdrawn']

### Response:
SELECT COUNT Built FROM table WHERE HR name = (River Garry)