Does the train that is to the left of the other train look orange?
Yes, the train is orange.
    src        edge_attr  dst
0     0  to the right of   12
1     0  to the right of    2
2     0  to the right of    9
3     2   to the left of    0
4     2   to the left of   12
5     7        on top of    9
6     7  to the right of   17
7     7   to the left of   12
8     8   to the left of   13
9     8   to the left of   15
10    8   to the left of    9
11    8  to the right of   10
12    9   to the left of    0
13    9  to the right of    8
14    9   to the left of   12
15    9  to the right of   17
16   10   to the left of    8
17   12  to the right of    9
18   12   to the left of    0
19   12  to the right of    7
20   12  to the right of    2
21   13  to the right of   17
22   13               of    9
23   13  to the right of    8
24   13  to the right of   15
25   14               of   17
26   14   to the left of   18
27   15   to the left of   13
28   15               of    9
29   15  to the right of   17
30   15  to the right of    8
31   17   to the left of    7
32   17   to the left of    9
33   17   to the left of   15
34   17   to the left of   13
35   18               of   17
36   18  to the right of   14