What vehicle is not blue?
The vehicle is a taxi.
    src        edge_attr  dst
0     0  to the right of    2
1     0   to the left of    4
2     0  to the right of   17
3     0  to the right of   16
4     0   to the left of   14
..  ...              ...  ...
74   17   to the left of   14
75   17  to the right of    7
76   17  to the right of   12
77   17      standing at   16
78   17          wearing    2

[79 rows x 3 columns]