Is the zebra's hair black or white?
The hair is black.
   src        edge_attr  dst
0    0  to the right of    6
1    1  to the right of    4
2    3       walking on    2
3    3  to the right of    4
4    4   walking behind    3
5    4   to the left of    3
6    4   to the left of    1
7    4       walking on    2
8    6   to the left of    0