Is the vehicle to the right of the horse waiting or driving?
The bus is driving.
    src        edge_attr  dst
0     0   to the left of    5
1     0   to the left of    2
2     0   to the left of    4
3     0   to the left of    3
4     1  to the right of    7
5     2  to the right of    0
6     2             near    5
7     3  to the right of    0
8     4  to the right of    0
9     5  to the right of    0
10    5             near    2
11    5  to the right of    8
12    5  to the right of    6
13    6   to the left of    5
14    7   to the left of    1
15    8   to the left of    5