She is sitting on what animal?
The girl is sitting on the horse.
    src        edge_attr  dst
0     0       sitting on    1
1     0           riding    1
2     0          wearing    5
3     0          wearing    4
4     0               on    1
5     0      in front of    2
6     0          wearing    3
7     0  to the right of    7
8     1         carrying    0
9     2           behind    0
10    3  to the right of    7
11    7   to the left of    3
12    7   to the left of    0