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

### Instruction:
What is the highest pennant number with ships in pori class?

### Inputs:
table_name: table, columns: ['Class', 'Ships in class', 'Pennant Number', 'Unit', 'Builder', 'Commissioned']

### Response:
SELECT MAX Pennant Number FROM table WHERE Ships in class = pori