How is the water?
The water is wavy.
   src        edge_attr  dst
0    0   to the left of    1
1    1  to the right of    0
2    1  to the right of    7
3    3          wearing    5
4    3  to the right of    4
5    4   to the left of    3
6    4   to the left of    5
7    5  to the right of    4
8    7   to the left of    1