What is growing along the fence on the right?
The plant is growing along the fence.
     src        edge_attr  dst
0      0   to the left of   25
1      0   to the left of    6
2      0   to the left of   27
3      1   to the left of   15
4      2               of   21
..   ...              ...  ...
167   30   to the left of    8
168   30   to the left of   16
169   31  to the right of   23
170   31  to the right of   20
171   31  to the right of   13

[172 rows x 3 columns]