What color is the ground?
The ground is orange.
    src        edge_attr  dst
0     0  to the right of   18
1     0   to the left of    5
2     1  to the right of   16
3     1  to the right of   13
4     1  to the right of   15
..  ...              ...  ...
66   18   to the left of    0
67   18   to the left of    5
68   18  to the right of   10
69   18  to the right of   11
70   18   to the left of    9

[71 rows x 3 columns]