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