What is this, a train or a bus?
This is a bus.
    src        edge_attr  dst
0     0               of   10
1     0   to the left of    9
2     0  to the right of    4
3     0   to the left of   13
4     0             near    4
5     1           inside   17
6     1  to the right of   12
7     2           behind   12
8     2   to the left of    9
9     3  to the right of    6
10    4             near    0
11    4   to the left of   17
12    4   to the left of    0
13    4   to the left of    9
14    6  to the right of   14
15    6   to the left of    3
16    6  to the right of    7
17    7   to the left of    6
18    7  to the right of   15
19    8  to the right of    9
20    9   to the left of    8
21    9  to the right of    4
22    9  to the right of    2
23    9  to the right of    0
24   10           behind   12
25   11               by   15
26   11   to the left of   17
27   12           behind   17
28   12      in front of    2
29   12      in front of   10
30   12   to the left of    1
31   13  to the right of    0
32   14  to the right of   15
33   14   to the left of    6
34   15   to the left of   14
35   15   to the left of    7
36   17               on   16
37   17      in front of   12
38   17  to the right of   11
39   17  to the right of    4