What color do you think is the sky?
The sky is gray.
    src        edge_attr  dst
0     0   to the left of    8
1     0  to the right of   16
2     0   to the left of    2
3     0   to the left of    1
4     0   to the left of   13
..  ...              ...  ...
92   14   to the left of    1
93   16   to the left of   13
94   16   to the left of    0
95   16               of   12
96   17  to the right of   14

[97 rows x 3 columns]