What is the vehicle that is driving on the highway?
The vehicle is a truck.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    4
2     1   to the left of   13
3     3  to the right of   16
4     4  to the right of    0
5     5   to the left of    8
6     7  to the right of    0
7     8  to the right of    9
8     8  to the right of    5
9     8               on    5
10    9   to the left of    8
11   10  to the right of   16
12   10               in   12
13   11             near   13
14   12       driving on   11
15   12  to the right of   16
16   13             near   11
17   13  to the right of    1
18   13   on the side of   11
19   14               on   11
20   15  on the front of   12
21   15  to the right of   16
22   16   to the left of   12
23   16   to the left of    3
24   16   to the left of   15
25   16   to the left of   10