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