Which vehicle is not red, the bus or the van?
The van is not red.
    src        edge_attr  dst
0     0  to the right of   11
1     0   to the left of    2
2     0   to the left of   25
3     1   to the left of   18
4     2   to the left of   18
..  ...              ...  ...
64   24   to the left of   16
65   24   to the left of   23
66   25  to the right of    0
67   25  to the right of   11
68   25  to the right of   12

[69 rows x 3 columns]