Which color is the wire fence?
The fence is brown.
    src        edge_attr  dst
0     0  to the right of   17
1     0  to the right of   16
2     1  to the right of    2
3     2               in    3
4     2   to the left of   12
5     2   to the left of   16
6     2   to the left of   14
7     2   to the left of   18
8     2   to the left of   17
9     2   to the left of    7
10    2   to the left of    1
11    4               in   10
12    4  to the right of   11
13    5               in   10
14    6               of   13
15    6  to the right of   17
16    6   to the left of    8
17    6  to the right of   16
18    7  to the right of    2
19    7               in   10
20    8  to the right of   17
21    8  to the right of    6
22    8  to the right of   16
23    9               by    8
24    9            below   15
25   11           eating    1
26   11   to the left of    4
27   11      standing in    1
28   11               in    3
29   11               in   10
30   12  to the right of    2
31   13  to the right of   16
32   13               in    3
33   13  to the right of   17
34   14  to the right of    2
35   16   to the left of    0
36   16  to the right of    2
37   16   to the left of    6
38   16   to the left of   13
39   16   to the left of    8
40   17   to the left of    0
41   17               by    8
42   17  to the right of    2
43   17   to the left of   13
44   17   to the left of    8
45   17   to the left of    6
46   18  to the right of    2