OBSTRUCTIONIDSURFACE (1)
WETLAND (2)
UTILITYPOLYGON (3)
TUNNEL (4)
TAXIWAYINTERSECTION (5)
TAXIWAYELEMENT (6)
TANKSITE (7)
SIDEWALK (8)
SHOULDER (9)
SHORELINE (10)
MARKINGAREA (11)
RUNWAYELEMENT (12)
RUNWAYBLASTPAD (13)
RUNWAY (14)
ROOF (15)
ROADSEGMENT (16)
PASSENGERLOADINGBRIDGE (17)
BUILDING (18)
PARKINGLOT (19)
OBSTRUCTIONAREA (20)
FORESTSTANDAREA (21)
DRIVEWAYAREA (22)
CONSTRUCTIONAREA (23)
BRIDGE (24)
APRON (25)
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