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

### Instruction:
What is the episode name that aired on July 23, 2009 with more than 3.31 viewers?

### Inputs:
table_name: table, columns: ['Order', 'Episode', 'Air Date', 'U.S. Timeslot (EST)', '18-49', 'Viewers']

### Response:
SELECT Episode FROM table WHERE Air Date = july 23, 2009 AND Viewers > 3.31