Is the van to the right of a fence?
No, the van is to the right of a bicycle.
    src        edge_attr  dst
0     0   to the left of    2
1     1  to the right of    6
2     2   to the left of   15
3     2  to the right of    0
4     3  to the right of   22
5     5  to the right of   18
6     6   to the left of    1
7     7   to the left of   11
8     8   to the left of   11
9     8  to the right of    9
10    9   to the left of    8
11    9   to the left of   11
12   11  to the right of    7
13   11   to the left of   21
14   11   to the left of   19
15   11  to the right of    9
16   11  to the right of    8
17   12  to the right of   22
18   12   to the left of   14
19   13   to the left of   15
20   14  to the right of   22
21   14  to the right of   12
22   15  to the right of   22
23   15  to the right of   13
24   15  to the right of    2
25   16  to the right of   22
26   16  to the right of   17
27   17   to the left of   16
28   17  to the right of   22
29   18   to the left of    5
30   19  to the right of   11
31   21  to the right of   11
32   21  to the right of   22
33   22   to the left of   16
34   22   to the left of   17
35   22   to the left of   12
36   22   to the left of    3
37   22   to the left of   14
38   22   to the left of   15
39   22   to the left of   21