What are the best National Parks in the United States
Yosemite, Glacier, Zion, Yellowstone, Great Smoky Mountains, Rocky Mountain, Grand Teton, Acadia, Olympic, Bryce Canyon, Grand Canyon, Denali, Kenai Fjords, Arches...
Instruction: What are the best National Parks in the United States
Context: 
Response: Yosemite, Glacier, Zion, Yellowstone, Great Smoky Mountains, Rocky Mountain, Grand Teton, Acadia, Olympic, Bryce Canyon, Grand Canyon, Denali, Kenai Fjords, Arches...