Are there any white trucks or buses?
No, there is a truck but it is red.
    src        edge_attr  dst
0     0   to the left of   15
1     0   to the left of   11
2     2  to the right of   16
3     2             near   16
4     3  to the right of   16
5     3  to the right of   10
6     3   to the left of    4
7     4  to the right of   11
8     4  to the right of    6
9     4   to the left of    8
10    4  to the right of    3
11    5  to the right of   13
12    5   to the left of   15
13    6   to the left of    4
14    6   to the left of   15
15    7   to the left of   12
16    7  to the right of   14
17    8  to the right of    4
18    9  to the right of   10
19   10   to the left of    9
20   10   to the left of    3
21   10   to the left of   11
22   10  to the right of   13
23   11   to the left of    4
24   11  to the right of   10
25   11  to the right of   16
26   11  to the right of    0
27   12  to the right of   15
28   12  to the right of    7
29   13   to the left of    5
30   13   to the left of   14
31   13   to the left of   15
32   13   to the left of   10
33   14  to the right of   13
34   14   to the left of    7
35   14   to the left of   15
36   15  to the right of   16
37   15  to the right of    0
38   15  to the right of    6
39   15   to the left of   12
40   15  to the right of    5
41   15  to the right of   14
42   15  to the right of   13
43   16   to the left of    3
44   16   to the left of   15
45   16   to the left of    2
46   16   to the left of   11
47   16             near    2