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

### Instruction:
What is the format of the album Pacific Ocean Blue in 1991?

### Inputs:
table_name: table, columns: ['Artist', 'Album', 'Country', 'Year', 'Catalog #', 'Format']

### Response:
SELECT Format FROM table WHERE Album = pacific ocean blue AND Year = 1991