Does the water above the rock look brown and clean?
No, the water is clean but blue.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    1
2     1           beside    2
3     1             near    2
4     1               of    3
5     1  to the right of    0
6     2             near    3
7     2   to the left of    3
8     2             near    1
9     3             near    2
10    3          next to    2
11    3           behind    0
12    3      swimming in    4
13    3  to the right of    0
14    3  to the right of    2
15    4            above    3
16    4            above    2