{
  "Airspaces": 0,
  "Communication_and_Radar": 1,
  "GPS": 2,
  "Landing_Navaids": 3,
  "Obstacles": 4,
  "Parking": 5,
  "Procedure": 6,
  "Runway": 7,
  "Services_and_Facilities": 8,
  "Signs_and_Lights": 9,
  "Taxiway": 10,
  "Terminal_or_Enroute_Navaids": 11,
  "Wildlife": 12
}