What vehicle is not green?
The vehicle is a taxi.
    src        edge_attr  dst
0     0   to the left of    4
1     0   to the left of   16
2     0   to the left of   17
3     0   to the left of   14
4     0  to the right of    1
..  ...              ...  ...
93   17  to the right of   15
94   17   to the left of    6
95   17  to the right of    0
96   17  to the right of    1
97   17               in   10

[98 rows x 3 columns]