Question: Which airport is located in the state of Maine, Portland International Jetport or Muskegon County Airport?
Sentence (from "Muskegon Lake"): Located in the lower peninsula at the mouth of the Muskegon River, Muskegon Lake forms a 12 sqmi broad harbor along the eastern shoreline of Lake Michigan, approximately 2.5 mi wide by 5.5 mi long.
Relevant evidence: No