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

### Instruction:
What are the notes regarding the scout x-4 vehicle which ceased operation in June 1971?

### Inputs:
table_name: table, columns: ['Name', 'Launched', 'Vehicle', 'Ceased operation', 'Notes']

### Response:
SELECT Notes FROM table WHERE Vehicle = scout x-4 AND Ceased operation = june 1971