What is the fence in front of?
The fence is in front of the mountain.
     src        edge_attr  dst
0      0      in front of    3
1      0  to the right of   23
2      0             near   25
3      0   to the left of   17
4      0   to the left of   25
..   ...              ...  ...
252   31   to the left of   18
253   31   to the left of   16
254   31   to the left of    9
255   31  to the right of    2
256   32   to the left of   30

[257 rows x 3 columns]