What is that woman in front of?
The woman is in front of the tree.
   src        edge_attr  dst
0    0  to the right of    9
1    1  to the right of    9
2    3          wearing    4
3    3          wearing    1
4    3      in front of    6
5    6           behind    3
6    9   to the left of    0
7    9   to the left of    1