What is in front of the blue vehicle?
The fence is in front of the vehicle.
    src        edge_attr  dst
0     0  to the right of   13
1     1  to the right of    7
2     1   to the left of    6
3     1   to the left of   18
4     1   to the left of   16
..  ...              ...  ...
81   18  to the right of   15
82   18  to the right of   13
83   20   to the left of    6
84   20  to the right of    1
85   20  to the right of   13

[86 rows x 3 columns]