What is the color of the water?
The water is brown.
     src        edge_attr  dst
0      0  to the right of   22
1      0  to the right of   19
2      0  to the right of    9
3      0  to the right of   21
4      0  to the right of    5
..   ...              ...  ...
112   21   to the left of   18
113   22   to the left of    6
114   22   to the left of   11
115   22   to the left of    0
116   23  to the right of    5

[117 rows x 3 columns]