Is the person wearing a helmet?
Yes, the person is wearing a helmet.
   src        edge_attr  dst
0    0   to the left of    7
1    4          wearing    0
2    4          wearing    1
3    4     holding onto    8
4    4          wearing    6
5    7  to the right of    8
6    7  to the right of    0
7    8   to the left of    7
8    8               on    2