What vehicle is maroon?
The vehicle is a train.
     src        edge_attr  dst
0      0   to the left of   14
1      0   to the left of    1
2      0   to the left of    3
3      0   to the left of    2
4      0   to the left of   13
..   ...              ...  ...
100   22  to the right of   18
101   22      in front of    4
102   22             near   15
103   23  to the right of   18
104   23  to the right of   15

[105 rows x 3 columns]