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

### Instruction:
What was the major version when the webkit version was 528.17?

### Inputs:
table_name: table, columns: ['Major version', 'Minor version', 'WebKit version', 'Operating System', 'Release date', 'Features']

### Response:
SELECT Major version FROM table WHERE WebKit version = 528.17