Is the silver mirror to the left or to the right of the white truck?
The mirror is to the right of the truck.
    src        edge_attr  dst
0     0   to the left of   21
1     0   to the left of    8
2     1         lying in    3
3     1  to the right of    3
4     1  to the right of    7
5     1  to the right of   21
6     3   to the left of    1
7     3   to the left of    8
8     3   to the left of    7
9     3   to the left of   21
10    4   to the left of   20
11    4  to the right of    5
12    5   to the left of   15
13    5   to the left of    4
14    5   to the left of   20
15    6   to the left of    7
16    6   to the left of    8
17    7   to the left of    1
18    7  to the right of    3
19    7  to the right of    6
20    8  to the right of    0
21    8  to the right of    3
22    8  to the right of    6
23   15  to the right of    5
24   15   to the left of   20
25   16   to the left of   20
26   16   to the left of   18
27   18  to the right of   16
28   18   to the left of   22
29   20  to the right of   16
30   20   to the left of   22
31   20  to the right of    5
32   20  to the right of    4
33   20  to the right of   15
34   21  to the right of    3
35   21   to the left of    1
36   21  to the right of    0
37   22  to the right of   18
38   22  to the right of   20
39   24  to the right of   26
40   26   to the left of   24