What is the officer wearing?
The officer is wearing a life jacket.
   src        edge_attr  dst
0    1               on    3
1    1          wearing    4
2    2               in    0
3    3               in    0
4    6       sitting in    2
5    6   to the left of    7
6    7       sitting in    2
7    7  to the right of    6
8    8          wearing    9