What is on the calm water?
The boats are on the water.
    src        edge_attr  dst
0     0   to the left of   15
1     0   to the left of    9
2     1   to the left of    5
3     1  to the right of    4
4     1   to the left of    8
..  ...              ...  ...
59   13  to the right of   11
60   13  to the right of    8
61   13  to the right of   10
62   13  to the right of    7
63   15  to the right of    0

[64 rows x 3 columns]