What is the man wearing?
The man is wearing a helmet.
   src        edge_attr  dst
0    0             near    3
1    1           behind    3
2    1   to the left of    2
3    2  to the right of    1
4    3          wearing    0
5    3        riding on    2
6    3      in front of    1
7    3             near    0
8    3               on    2
9    3          holding    2