Are there trucks or trains that are red?
Yes, the train is red.
     src        edge_attr  dst
0      0  to the right of   23
1      0   to the left of    3
2      0  to the right of    2
3      0  to the right of   11
4      0  to the right of   25
..   ...              ...  ...
186   25  to the right of   24
187   25   to the left of    5
188   25   to the left of   13
189   25  to the right of   20
190   25  to the right of   21

[191 rows x 3 columns]