Is the blue helmet to the left of the vehicle on the left of the picture?
No, the helmet is to the right of the car.
    src        edge_attr  dst
0     0   to the left of    4
1     1               on    4
2     1   to the left of    9
3     2   to the left of    8
4     2  to the right of    5
5     2   to the left of    4
6     3   to the left of    9
7     4  to the right of    5
8     4  to the right of    2
9     4   to the left of    6
10    4  to the right of    0
11    5   to the left of    4
12    5   to the left of    2
13    5   to the left of    8
14    6  to the right of    4
15    8  to the right of    5
16    8  to the right of    2
17    9               on    4
18    9  to the right of    1
19    9  to the right of    3