What type of vehicle is this, a bus or a truck?
This is a truck.
    src        edge_attr  dst
0     0  to the right of    5
1     0  to the right of    1
2     0   to the left of    8
3     0   to the left of    6
4     1  to the right of   11
5     1  to the right of   19
6     1   to the left of    5
7     1   to the left of    0
8     1  to the right of   18
9     2   to the left of   14
10    2  to the right of   19
11    2   to the left of   21
12    4   to the left of    6
13    5   to the left of    0
14    5  to the right of    1
15    5   to the left of    8
16    6  to the right of    4
17    6   to the left of   17
18    6  to the right of    0
19    7           beside   13
20    7  to the right of   14
21    8             near   13
22    8  to the right of    5
23    8  to the right of   15
24    8  to the right of    0
25   10  to the right of   11
26   10           behind   16
27   11             near   13
28   11           beside   13
29   11   to the left of   10
30   11   to the left of    1
31   11   to the left of   19
32   11   to the left of   12
33   12  to the right of   11
34   13             near    8
35   13             near   11
36   13           beside   11
37   14  to the right of    2
38   14   to the left of    7
39   15   to the left of    8
40   16      in front of   10
41   17  to the right of    6
42   18   to the left of    1
43   19   to the left of    2
44   19   to the left of    1
45   19  to the right of   11
46   20           beside   13
47   21  to the right of    2