Are there either stone planters or fences?
Yes, there is a stone fence.
     src        edge_attr  dst
0      0  to the right of    3
1      0  to the right of    1
2      1   to the left of   30
3      1   to the left of    0
4      2   to the left of   10
..   ...              ...  ...
173   39   to the left of   17
174   39   to the left of   12
175   39  to the right of   23
176   39   to the left of   25
177   39   to the left of   34

[178 rows x 3 columns]