Is the ground green?
No, the ground is brown.
    src        edge_attr  dst
0     0  to the right of   16
1     0   to the left of    8
2     0  to the right of   23
3     0   to the left of    2
4     0  to the right of    1
..  ...              ...  ...
72   23   to the left of   17
73   23   to the left of    0
74   23  to the right of   11
75   23   to the left of   20
76   23  to the right of   21

[77 rows x 3 columns]