What is the air speed velocity of an unladen swallow?
The European swallow, weighing on average 20 grams, flaps its wings 12 times every second, this results in an estimated air speed of 9 meters per second, which is roughly 20.1 miles per hour.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What is the air speed velocity of an unladen swallow?
### Input: 
### Response: The European swallow, weighing on average 20 grams, flaps its wings 12 times every second, this results in an estimated air speed of 9 meters per second, which is roughly 20.1 miles per hour.