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