{
    "key": "surface",
    "type": "combo",
    "label": "Surface",
    "strings": {
       "options": {
           "asphalt": "Asphalt",
           "unpaved": "Unpaved",
           "paved": "Paved",
           "ground": "Ground",
           "gravel": "Gravel",
           "compacted": "Compacted",
           "concrete": "Concrete",
           "paving_stones": "Paving Stones",
           "dirt": "Dirt",
           "grass": "Grass",
           "sand": "Sand",
           "wood": "Wood",
           "artificial_turf": "Artificial Turf"
       }
   }
}