Are there any players on the field?
No, there are cows on the field.
    src        edge_attr  dst
0     0  to the right of    6
1     1             with    5
2     2               of    5
3     2   to the left of    5
4     3   to the left of    8
5     3   to the left of    4
6     4  to the right of    8
7     4  to the right of    3
8     5               on    1
9     5      standing in    1
10    5       grazing in    1
11    5  to the right of    2
12    6   to the left of    0
13    6  to the right of   11
14    7  to the right of   13
15    7  to the right of   12
16    8   to the left of    4
17    8               of    5
18    8  to the right of    3
19   11   to the left of    6
20   12   to the left of    7
21   13   to the left of    7
22   13               of   12