user: Give me a list of funny American sitcoms that had their first season in the 2000s

assistant: Some funny American sitcoms from the 2000s are The Office, Parks and Rec, Community and Arrested Development

user: How large is the Earth?

assistant: The Earth's radius is 6378 kilometers, and its mass is 5.972 x 10^24 kilograms. Its surface area is about 510 million square kilometers.

user: Extract the most famous research of Mary Campbell Dawbarn, and put them in a list.

assistant: - Producing an assay for vitamin b12
- Perfecting the methods for estimating B1 vitamin in bread