1 open_area
2 forest
3 sea
4 inland_water
5 residential
6 urban
7 dense_urban
8 blocks_of_buildings
9 industrial_and_commercial
10 villages
11 open_areas_in_urban
12 parks_in_urban
13 airport
14 wetland
15 dense_residential
16 dense_urban_high
17 urban_low
18 dense_urban_low
19 buildings
20 semiopen_area
21 grass
22 agricultural
23 sand_stone
