What is in front of the black car?
The trees are in front of the car.
    src        edge_attr  dst
0     0  to the right of   21
1     0   to the left of   12
2     1               of   12
3     1  to the right of   10
4     1  to the right of    5
..  ...              ...  ...
63   19           behind   15
64   21   to the left of    0
65   21   to the left of   17
66   21  to the right of    7
67   22  to the right of    8

[68 rows x 3 columns]