What is the fence in front of?
The fence is in front of the trees.
     src        edge_attr  dst
0      0   to the left of   12
1      0  to the right of   22
2      0   to the left of    6
3      0  to the right of   14
4      0  to the right of    9
..   ...              ...  ...
163   24  to the right of   20
164   25   to the left of   10
165   25   to the left of    7
166   25   to the left of   11
167   25   to the left of   23

[168 rows x 3 columns]