The conversation between human and AI assistant.
[|Human|] What are six of the most picturesque national parks in the Unites States?
[|AI|] Zion National Park, Yellowstone National Park, Grand Canyon National Park, Yosemite National Park, Glacier National Park, Great Smoky Mountains National Park
[|Human|] 
What are six of the most picturesque national parks in the Unites States?