What is the fence made of?
The fence is made of metal.
     src        edge_attr  dst
0      0  to the right of   28
1      0   to the left of   12
2      0   to the left of    5
3      0  to the right of   27
4      0  to the right of   18
..   ...              ...  ...
105   29  to the right of   23
106   29  to the right of   24
107   29               in   14
108   30  to the right of   18
109   30               on   12

[110 rows x 3 columns]