What color is the vehicle in the middle?
The vehicle is white.
    src        edge_attr  dst
0     1   to the left of   11
1     1   to the left of   20
2     2   to the left of   18
3     2  to the right of    7
4     2   to the left of    5
..  ...              ...  ...
79   20  to the right of   12
80   20  to the right of   15
81   20  to the right of    4
82   20  to the right of    1
83   20  to the right of   16

[84 rows x 3 columns]