What is the fence made of?
The fence is made of metal.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of   14
2     0   to the left of   13
3     0  to the right of    3
4     0  to the right of    2
..  ...              ...  ...
90   16   to the left of    4
91   16  to the right of    1
92   16  to the right of   12
93   16   to the left of   15
94   16   to the left of    6

[95 rows x 3 columns]