Which kind of animal is walking through the grass?
The animal is a zebra.
    src        edge_attr  dst
0     0      standing in    1
1     0  walking through    1
2     0   to the left of    7
3     2  to the right of    7
4     3   to the left of    7
5     4   to the left of    7
6     7   to the left of    2
7     7  to the right of    0
8     7  to the right of    4
9     7  to the right of    3
10    7  to the right of   12
11   12   to the left of    7