Is the black vehicle to the left or to the right of the person on the motorcycle?
The car is to the left of the man.
    src        edge_attr  dst
0     0   to the left of    4
1     0   to the left of    3
2     0   to the left of    6
3     2               of    1
4     3  to the right of    0
5     4  to the right of    0
6     4   to the left of    6
7     4   to the left of    5
8     5  to the right of    6
9     5  to the right of    4
10    6               on    3
11    6  to the right of    4
12    6   to the left of    5
13    6  to the right of    0