Does the water behind the sand have brown color?
No, the water is blue.
    src    edge_attr  dst
0     0       behind    5
1     1        below    9
2     1       behind    3
3     3  in front of    1
4     3       behind    8
5     4        above    3
6     4           in    9
7     5           in    9
8     5  in front of    0
9     8  in front of    3
10    8        below    9
11    9        above   10
12    9        above    3
13   10           in    3