Are there any cages or helmets?
Yes, there is a helmet.
   src        edge_attr  dst
0    0          wearing    7
1    0          wearing   10
2    0   to the left of    5
3    1  to the right of    6
4    3  to the right of   11
5    5  to the right of    8
6    5  to the right of    0
7    6   to the left of    1
8    8   to the left of    5
9   11   to the left of    3