What color are the dogs to the right of the other dog?
The dogs are brown.
   src        edge_attr  dst
0    1   to the left of    8
1    1  to the right of    2
2    1  to the right of   10
3    2  to the right of    3
4    2   to the left of    1
5    3   to the left of    2
6    3   to the left of   10
7    8  to the right of    1
8   10   to the left of    1
9   10  to the right of    3