Do you see green fences?
No, there is a fence but it is brown.
    src        edge_attr  dst
0     1   to the left of   11
1     1   to the left of    9
2     1   to the left of   15
3     1               on    0
4     3  to the right of    9
5     3  to the right of    8
6     5  to the right of    7
7     5   to the left of    6
8     6  to the right of    5
9     6  to the right of    9
10    6  to the right of    8
11    7   to the left of    9
12    7   to the left of    5
13    8   to the left of    3
14    8   to the left of    6
15    9          wearing    5
16    9  to the right of    1
17    9   to the left of    3
18    9   to the left of    6
19    9  to the right of    7
20    9   to the left of   14
21    9   to the left of   16
22    9               on    0
23   11  to the right of    1
24   14       sitting on    0
25   14  to the right of    9
26   15  to the right of    1
27   16  to the right of    9