What is the animal under the tree?
The animal is a horse.
    src        edge_attr  dst
0     1   to the left of    8
1     1   to the left of    6
2     2   to the left of    5
3     2   to the left of    9
4     3  to the right of    4
5     4   to the left of    3
6     5  to the right of    2
7     6            under    9
8     6            above    7
9     6  to the right of    1
10    7            under    6
11    7            below    6
12    8  to the right of    1
13    9            above    6
14    9  to the right of    2