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

### Instruction:
What shows as the Original Song when the Covered Song was " sign o' the times " by prince .?

### Inputs:
table_name: table, columns: ['Album', 'Release date', 'Label', 'Format', 'Covered Song', 'Original Song']

### Response:
SELECT Original Song FROM table WHERE Covered Song = " sign o' the times " by prince .