What is the vehicle on the road?
The vehicle is a car.
    src        edge_attr  dst
0     0   to the left of    2
1     0  to the right of    4
2     0   to the left of   13
3     0   to the left of   10
4     1               on    7
5     1   to the left of   10
6     1  to the right of    4
7     1               by   14
8     2  to the right of   10
9     2  to the right of    5
10    2  to the right of    8
11    2  to the right of   14
12    2  to the right of    0
13    4   to the left of   14
14    4               by    7
15    4   to the left of    0
16    4   to the left of    1
17    5   to the left of    2
18    6   to the left of    8
19    8  to the right of    6
20    8               by    6
21    8   to the left of   11
22    8               on   10
23    8   to the left of    2
24    9               by    6
25   10  to the right of   14
26   10   to the left of   15
27   10  to the right of    0
28   10  to the right of    1
29   10   to the left of    2
30   10   to the left of   12
31   10   to the left of   13
32   11               on    2
33   11  to the right of    8
34   12  to the right of   14
35   12  to the right of   10
36   13  to the right of    0
37   13  to the right of   14
38   13  to the right of   10
39   14   to the left of   13
40   14   to the left of   10
41   14   to the left of    2
42   14   to the left of   12
43   14  to the right of    4
44   15               by   13
45   15  to the right of   10