sentence: Oil is the biggest industry in Alaska.
sentences_before: There are some important industries in Alaska, like oil, fishing, mining, and forestry.
sentences_after: Most of the oil is very far north in the Alaskan arctic. A very long pipeline starts at the northern coast of Alaska and runs to the southern coast. It is over 800 miles long. There were many gold rushes in Alaska.
concept_name: oil
headings: Alaska Geography