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

### Instruction:
Which #/ County has a Year Joined larger than 1926, and a Previous Conference of olympic?

### Inputs:
table_name: table, columns: ['School', 'Location', 'Mascot', '# / County', 'Enrollment', 'IHSAA Class / Football/Soccer', 'Year Joined', 'Previous Conference']

### Response:
SELECT # / County FROM table WHERE Year Joined > 1926 AND Previous Conference = olympic