What is on the water?
The boats are on the water.
    src        edge_attr  dst
0     0   to the left of   12
1     1   to the left of    3
2     1   to the left of   12
3     2   to the left of    3
4     3   on the side of   15
..  ...              ...  ...
66   24  to the right of   13
67   24  to the right of   10
68   24   to the left of   20
69   24   to the left of   14
70   24    standing near   15

[71 rows x 3 columns]