What is full of grass?
The field is full of grass.
    src        edge_attr  dst
0     0   to the left of   16
1     2               of   15
2     3         covering   11
3     3   to the left of   12
4     3   to the left of   11
5     5               of   15
6     5  to the right of   16
7     6          full of   14
8     7   to the left of   13
9     7  to the right of   10
10    8               of    9
11   10   to the left of    7
12   10           behind   13
13   11  to the right of    3
14   11     covered with    3
15   11       covered by    3
16   12               in   11
17   12  to the right of    3
18   13      in front of   10
19   13  to the right of    7
20   14               on    6
21   14               in    6
22   15      standing in   14
23   15               in    6
24   15               on    6
25   15  to the right of   16
26   15               in   14
27   15       grazing on   14
28   16  to the right of    0
29   16   to the left of   15
30   16   to the left of    5