How does the clear water look, brown or white?
The water is brown.
    src        edge_attr  dst
0     1               on    7
1     1  to the right of    8
2     1  to the right of    3
3     2  to the right of    5
4     3   to the left of    7
5     3   to the left of    1
6     5   to the left of    2
7     6               in    2
8     7  to the right of    3
9     8               by    3
10    8   to the left of    1