Are there any people to the left of the vehicles that are on the road?
No, the people are to the right of the cars.
    src        edge_attr  dst
0     0   to the left of   12
1     0   to the left of    7
2     0   to the left of    2
3     0  to the right of   10
4     0   to the left of    6
5     0   to the left of    3
6     2  to the right of    0
7     2  to the right of   10
8     2   to the left of    7
9     2   to the left of    3
10    2   to the left of   12
11    3   to the left of    7
12    3   to the left of   12
13    3           riding   11
14    3  to the right of   10
15    3  to the right of    2
16    3  to the right of    0
17    4   to the left of   12
18    5   to the left of    9
19    5   to the left of   14
20    6  to the right of   10
21    6  to the right of    0
22    6  to the right of   11
23    7  to the right of    3
24    7  to the right of    2
25    7  to the right of    0
26    7               on    6
27    9  to the right of   14
28    9  to the right of    5
29   10   to the left of   11
30   10   to the left of    6
31   10   to the left of    2
32   10   to the left of    0
33   10  to the right of   13
34   10   to the left of    3
35   11   to the left of    6
36   11   to the left of   12
37   11  to the right of   10
38   12  to the right of   11
39   12  to the right of    3
40   12  to the right of    4
41   12  to the right of    0
42   12  to the right of    2
43   13               on    4
44   13   to the left of   10
45   14   to the left of    9
46   14  to the right of    5