Is this a train or a truck?
This is a train.
    src        edge_attr  dst
0     0               of    3
1     0  to the right of    9
2     0  to the right of   12
3     0  to the right of   13
4     0  to the right of    1
5     0  to the right of   14
6     0  to the right of    6
7     0  to the right of    2
8     1   to the left of   14
9     1   to the left of    0
10    2   to the left of    0
11    5  to the right of   10
12    5               on    5
13    6        riding on    3
14    6   to the left of    0
15    6          wearing   13
16    6   to the left of   14
17    6             with    9
18    6      standing in    2
19    6             with    1
20    6   to the left of   12
21    6   to the left of   13
22    9   to the left of    0
23    9   to the left of   12
24   10   to the left of    5
25   11   to the left of   12
26   12   to the left of    0
27   12  to the right of    9
28   12  to the right of   11
29   12  to the right of    6
30   13   to the left of    0
31   13  to the right of    6
32   14  to the right of    1
33   14  to the right of    6
34   14   to the left of    0