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

### Instruction:
What is the pressure in ultra high vacuum?

### Inputs:
table_name: table, columns: ['Vacuum range', 'Pressure in hPa (mbar)', 'Molecules / cm 3', 'Molecules / m 3', 'Mean free path']

### Response:
SELECT Pressure in hPa (mbar) FROM table WHERE Vacuum range = Ultra high vacuum