What's inside the lake?
The boat is inside the lake.
    src        edge_attr  dst
0     0   to the left of    5
1     0   to the left of    8
2     0   to the left of    1
3     0  to the right of   15
4     0   to the left of   12
..  ...              ...  ...
67   18           behind   14
68   19  to the right of    7
69   20  to the right of   15
70   20           inside   17
71   20   to the left of    5

[72 rows x 3 columns]