Is the field brown?
Yes, the field is brown.
    src        edge_attr  dst
0     0  to the right of    3
1     0   to the left of    2
2     0   to the left of    1
3     0  to the right of   11
4     0  to the right of   15
5     0   to the left of   10
6     1               in   13
7     1             near    6
8     1  to the right of    0
9     1  to the right of   15
10    2  to the right of    0
11    2  to the right of   15
12    3   to the left of   11
13    3   to the left of    0
14    3   to the left of   15
15    3   to the left of   13
16    4   to the left of   13
17    5               by    6
18    6             near    1
19   10  to the right of    0
20   10  to the right of   15
21   10               of   15
22   10               of    1
23   11               in   13
24   11   to the left of    0
25   11   to the left of   15
26   11               in   12
27   11  to the right of    3
28   12               of   13
29   13               on   12
30   13  to the right of    4
31   13  to the right of    3
32   14               of   15
33   15               on   12
34   15      standing by    6
35   15   to the left of    2
36   15   to the left of   10
37   15   to the left of    0
38   15  to the right of   11
39   15   to the left of    1
40   15  to the right of    3