What vehicle is it?
The vehicle is a train.
    src        edge_attr  dst
0     0   to the left of    8
1     0   to the left of    7
2     0   to the left of    9
3     0   to the left of    6
4     0   to the left of    2
5     1   to the left of    5
6     1   to the left of    4
7     2  to the right of   10
8     2  to the right of    5
9     2  to the right of    0
10    2   to the left of    8
11    4  to the right of    1
12    5  to the right of    1
13    5   to the left of    2
14    5   to the left of    6
15    5   to the left of    7
16    5   to the left of   10
17    6  to the right of    0
18    6  to the right of    5
19    7  to the right of    0
20    7   to the left of    8
21    7  to the right of    5
22    7               on    6
23    8  to the right of    2
24    8  to the right of    0
25    8  to the right of    7
26    9               on    8
27    9  to the right of    0
28   10  to the right of    5
29   10   to the left of    2