What is the animal that is standing by the gravel?
The animal is a cow.
    src        edge_attr  dst
0     1               of    9
1     2   to the left of    4
2     3   to the left of    4
3     4  to the right of    9
4     4  to the right of    5
5     4  to the right of    3
6     4  to the right of    2
7     5   to the left of    4
8     9   to the left of    4
9     9      standing by   12
10    9               by   11
11   11               by    4
12   12               on    4