Is the black helmet to the right or to the left of the person that is to the left of the people?
The helmet is to the left of the umpire.
    src        edge_attr  dst
0     0   to the left of   16
1     0  to the right of    5
2     1  to the right of   15
3     1  to the right of   10
4     1  to the right of    3
5     2  to the right of   17
6     3   to the left of    1
7     5  to the right of   10
8     5   to the left of    0
9     7  to the right of   15
10    7  to the right of   10
11   10   to the left of    7
12   10   to the left of    5
13   10   to the left of    1
14   15   to the left of    1
15   15   to the left of    7
16   16  to the right of    0
17   17   to the left of    2