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