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