Premise: Shenandoah Valley Regional Airport (IATA: SHD, ICAO: KSHD, FAA LID: SHD) is a public airport located 10 nautical miles (12 mi, 19 km) northeast of the central business district of Staunton, a city in Augusta County, Virginia, United States. It is mostly used for general aviation, but is also served by one commercial airline. Service is subsidized by the Essential Air Service program.
Hypothesis: The airport known by the the FAA as SHD accepts some money from the Essential Air Service program, though this is not the airport's only source of funds.