What animal is tied to the tree that is presented in the picture?
The animal is a horse.
    src        edge_attr  dst
0     1      in front of    5
1     1          tied to    3
2     2      attached to    1
3     3   to the left of    4
4     3   to the left of    6
5     4  to the right of    6
6     4  to the right of    5
7     4  to the right of    9
8     4  to the right of    3
9     5   to the left of    6
10    5   to the left of    4
11    5           behind    1
12    6   to the left of    4
13    6  to the right of    5
14    6  to the right of    3
15    7       growing in    0
16    9   to the left of    4