Which color is the cat?
The cat is orange.
   src        edge_attr  dst
0    0   to the left of   12
1    1   to the left of   12
2    2   to the left of    3
3    3  to the right of    2
4    8   to the left of   10
5   10  to the right of    8
6   12  to the right of    1
7   12  to the right of    0