Is the train at the train station yellow or red?
The train is yellow.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of    8
2     1  to the right of   11
3     1  to the right of    4
4     3   to the left of    9
5     3   to the left of   13
6     3   to the left of    0
7     4   to the left of   11
8     4  to the right of   14
9     4  to the right of    8
10    4   to the left of    1
11    6   to the left of   10
12    6  to the right of    9
13    8   to the left of    4
14    8   to the left of   11
15    8   to the left of    0
16    9  to the right of   16
17    9   to the left of   17
18    9  to the right of   14
19    9  to the right of    3
20    9   to the left of    6
21    9  to the right of   18
22    9   to the left of   10
23   10  to the right of    6
24   10  to the right of   17
25   10  to the right of    9
26   11               in    7
27   11  to the right of    8
28   11  to the right of    4
29   11   to the left of    1
30   13  to the right of    3
31   13  to the right of   15
32   13               at    5
33   13  to the right of   16
34   13  to the right of   18
35   14  to the right of   18
36   14   to the left of    9
37   14   to the left of    4
38   14               on   15
39   14  to the right of   16
40   15   to the left of   13
41   16   to the left of   13
42   16   to the left of   14
43   16   to the left of    9
44   16               by   13
45   17   to the left of   10
46   17  to the right of    9
47   18   to the left of    9
48   18   to the left of   13
49   18   to the left of   14