What kind of vehicle is on the left of the cone?
The vehicles are trucks.
    src        edge_attr  dst
0     0  to the right of    2
1     1  to the right of    2
2     2               in   12
3     2   to the left of    1
4     2   to the left of   11
5     2   to the left of    0
6     2   to the left of    4
7     2   to the left of    8
8     4   to the left of   10
9     4               of    8
10    4  to the right of    2
11    5   to the left of    8
12    6   to the left of   11
13    6               in    7
14    7   to the left of   11
15    8   to the left of   10
16    8  to the right of    9
17    8  to the right of    5
18    8  to the right of    2
19    9               on    8
20    9   to the left of    8
21   10  to the right of    8
22   10  to the right of    4
23   11  to the right of    6
24   11  to the right of    7
25   11  to the right of    2