How tall is the grass?
The grass is short.
    src        edge_attr  dst
0     0   to the left of   16
1     0   to the left of    4
2     0   to the left of   11
3     1  to the right of   11
4     1  to the right of   12
..  ...              ...  ...
74   17  to the right of   12
75   17  to the right of   11
76   17   to the left of    2
77   17  to the right of    7
78   17  to the right of   10

[79 rows x 3 columns]