Which kind of animal is on the grass?
The animal is a cow.
    src        edge_attr  dst
0     0               on   11
1     0  to the right of    5
2     0  to the right of    8
3     1  to the right of    9
4     1   to the left of    6
5     1  to the right of    7
6     1   to the left of   13
7     2  to the right of    7
8     5   to the left of    0
9     6  to the right of    1
10    7   to the left of    9
11    7   to the left of    1
12    7               on   11
13    7   to the left of    2
14    8               on   11
15    8   to the left of    0
16    9   to the left of    1
17    9  to the right of    7
18   13  to the right of    1