Are there black trucks or cars?
Yes, there is a black truck.
    src        edge_attr  dst
0     0  to the right of   13
1     0  to the right of    7
2     0   to the left of   16
3     0  to the right of   20
4     0  to the right of   19
..  ...              ...  ...
85   26  to the right of   27
86   27  to the right of   21
87   27   to the left of   26
88   27   to the left of    0
89   27  to the right of   20

[90 rows x 3 columns]