Where is the horse?
The horse is on the path.
   src        edge_attr  dst
0    1  to the right of    4
1    3   to the left of    4
2    3   to the left of    6
3    4   to the left of    8
4    4   to the left of    1
5    4  to the right of    3
6    4               on    5
7    6          wearing   10
8    6  to the right of    3
9    8  to the right of    4