Question: Twin Cities Air Service is an American fixed-base operator and charter airline based at Auburn, Maine and operating from Portland International Jetport, a public airport two miles (3 km) west of downtown Portland, in Cumberland County, in which state?
Sentence (from "Twin Cities Air Service"): Twin Cities Air Service is an American fixed-base operator and charter airline based at Auburn, Maine and operating from Auburn/Lewiston Municipal Airport and the Portland International Jetport.
Relevant evidence: Yes