What is the fence made of?
The fence is made of wood.
    src        edge_attr  dst
0     3  to the right of    8
1     3  to the right of    9
2     5  to the right of    7
3     5  to the right of    8
4     5               of   10
5     6             near   10
6     7               of   10
7     7   to the left of    5
8     8   to the left of    3
9     8   to the left of    5
10    9               of   10
11    9   to the left of    3
12   10          next to    6