Where is the dirt?
The dirt is on the hill.
    src        edge_attr  dst
0     0  to the right of   14
1     0   to the left of   13
2     0  to the right of   17
3     1  to the right of   17
4     1  to the right of   14
..  ...              ...  ...
76   21   to the left of   18
77   21               on   20
78   21   to the left of   10
79   21   to the left of    7
80   22   to the left of   19

[81 rows x 3 columns]