Input (grade 12): The Kobuk River (also Kooak, Kowak, Kubuk, Kuvuk, or Putnam) is a river located in the Arctic region of northwestern Alaska in the United States.
Output (grade 11): The Kobuk River (also Kooak, Kowak, Kubuk, Kuvuk, or Putnam) is a river that is in the Arctic region of Alaska, in the United States.