What animal is the window behind of, a cat or a dog?
The window is behind a cat.
   src        edge_attr  dst
0    5  to the right of    7
1    5               of   10
2    6   to the left of    8
3    7   to the left of    5
4    8  to the right of    6
5    8               of   10
6    9           behind   10
7   10               on    4
8   10      in front of    9
9   11               of   10