What is the fence around of?
The fence is around the grass.
    src        edge_attr  dst
0     1  to the right of    6
1     2               in    9
2     2               on    0
3     3               on    0
4     3  to the right of    4
5     4   to the left of    3
6     6   to the left of    1
7     6               on    5
8     6               on    4
9     7               of    1
10    8           around    5