Is the white car to the right or to the left of the van which is to the left of the bus?
The car is to the left of the van.
    src        edge_attr  dst
0     0  to the right of   13
1     0   to the left of   10
2     3   to the left of   11
3     3   to the left of    7
4     3  to the right of    6
5     3  to the right of    5
6     5               on   10
7     5   to the left of    7
8     5   to the left of    3
9     5   to the left of   11
10    6   to the left of    7
11    6   to the left of    3
12    7               on   10
13    7               on   13
14    7  to the right of   13
15    7  to the right of    3
16    7  to the right of    6
17    7  to the right of    5
18    7   to the left of   10
19    7   to the left of    8
20    8  to the right of    7
21    9               in    4
22   10  to the right of    0
23   10  to the right of    7
24   11  to the right of    3
25   11  to the right of    5
26   11  to the right of   13
27   13   to the left of    0
28   13   to the left of   11
29   13   to the left of    7