Are there any trains or buses that are not colorful?
No, there is a train but it is colorful.
    src        edge_attr  dst
0     2               on    3
1     2           facing   10
2     2               by   10
3     2  to the right of   10
4     3  to the right of    9
5     4  to the right of    6
6     4  to the right of    5
7     5   to the left of   10
8     5   to the left of    6
9     5   to the left of    4
10    6   to the left of    4
11    6  to the right of    5
12    7  to the right of    9
13    7  to the right of   10
14    8  to the right of   10
15    9   to the left of    3
16    9   to the left of    7
17   10               at    1
18   10   to the left of    7
19   10   to the left of    2
20   10  to the right of    5
21   10               by    9
22   10   to the left of    8