What are the weeds around of?
The weeds are around the gravel.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of   19
2     0   to the left of   13
3     2               of    3
4     3   to the left of   15
..  ...              ...  ...
94   20   to the left of    8
95   20   to the left of   10
96   20   to the left of    4
97   20   to the left of    7
98   20  to the right of    6

[99 rows x 3 columns]