Where is the grass?
The grass is in the zoo.
    src        edge_attr  dst
0     0   to the left of    2
1     1               on   13
2     1  to the right of   10
3     1  to the right of   14
4     1   to the left of    7
..  ...              ...  ...
65   19   to the left of    8
66   19          next to   13
67   19   to the left of   13
68   19   to the left of   10
69   20  to the right of   19

[70 rows x 3 columns]