What is the airplane on?
The airplane is on the crane.
    src        edge_attr  dst
0     0   to the left of    5
1     0  to the right of    3
2     0  to the right of   16
3     0   to the left of   15
4     1  to the right of    3
..  ...              ...  ...
60   19   to the left of   11
61   19   to the left of   10
62   20  to the right of    3
63   20   to the left of   15
64   20  to the right of    2

[65 rows x 3 columns]