What are the animals that are brown?
The animals are giraffes.
   src        edge_attr  dst
0    3  to the right of    6
1    6   to the left of    3
2    9   to the left of   14
3   10   to the left of   14
4   12               of   13
5   13      standing by    1
6   13      standing in    2
7   14  to the right of   10
8   14  to the right of    9
9   14               in    2