Identify the most common word used in the following paragraph.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed quis risus erat. Quisque eget facilisis velit.
The most common word used in the paragraph is 'quis', which is used three times.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Identify the most common word used in the following paragraph.

### Response:
The most common word used in the paragraph is 'quis', which is used three times.