What is the color of the grassy field?
The field is brown.
    src        edge_attr  dst
0     0           behind    8
1     1               on    0
2     3             near    5
3     4             near   11
4     5             near    3
5     5             near   11
6     8  to the right of    9
7     8      in front of    0
8     9  to the right of   14
9     9  to the right of   12
10    9   to the left of    8
11    9   to the left of   13
12   10               of    5
13   11             near    5
14   11             near    4
15   11   to the left of   14
16   12   to the left of    9
17   12  to the right of   15
18   13               of    5
19   13  to the right of    9
20   14               of    5
21   14  to the right of   11
22   14   to the left of    9
23   14  to the right of   15
24   15   to the left of   14
25   15   to the left of   12