What kind of vehicle is to the left of the plastic bag on the bench?
The vehicle is a truck.
    src        edge_attr  dst
0     0   to the left of    8
1     0               on   11
2     0  to the right of    7
3     0  to the right of    4
4     1               on   11
5     1  to the right of    7
6     1  to the right of   10
7     1   to the left of    8
8     1  to the right of    2
9     2   to the left of    1
10    2   to the left of   11
11    2   to the left of    7
12    2   to the left of    5
13    2   to the left of    4
14    2   to the left of    3
15    3  leaning against    4
16    3  to the right of    2
17    3   to the left of   13
18    3   to the left of    8
19    4  to the right of    2
20    4   to the left of   16
21    4   to the left of    0
22    4             near   11
23    4   to the left of   12
24    5   to the left of   16
25    5  to the right of    2
26    6  to the right of    7
27    6  to the right of   10
28    7  to the right of    2
29    7   to the left of    1
30    7               on   11
31    7   to the left of    0
32    7   to the left of    6
33    8  to the right of    0
34    8  to the right of    3
35    8  to the right of    1
36    8   to the left of   13
37    9   to the left of   14
38   10               of    3
39   10   to the left of    1
40   10   to the left of    6
41   11  to the right of    2
42   11             near    4
43   11   to the left of   13
44   12  to the right of    4
45   12  to the right of   15
46   12   to the left of   14
47   13  to the right of    3
48   13  to the right of   11
49   13  to the right of    8
50   14  to the right of    9
51   14  to the right of   12
52   15               of    4
53   15   to the left of   16
54   15   to the left of   12
55   16  to the right of    4
56   16  to the right of    5
57   16  to the right of   15