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

### Instruction:
what is the lowest rank when the type is hydro, the name is grand rapids generating station and the capacity (mw) is more than 479?

### Inputs:
table_name: table, columns: ['Rank', 'Name', 'Capacity ( MW )', 'Province', 'Type']

### Response:
SELECT MIN Rank FROM table WHERE Type = hydro AND Name = grand rapids generating station AND Capacity ( MW ) > 479