What vehicle is to the left of the fence?
The vehicle is a truck.
    src        edge_attr  dst
0     0  to the right of   16
1     0   to the left of   20
2     0  to the right of    3
3     0  to the right of   15
4     1          full of   12
..  ...              ...  ...
63   22  to the right of    8
64   23   to the left of    9
65   23   to the left of   16
66   23   to the left of   22
67   23   to the left of   19

[68 rows x 3 columns]