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