What color do you think the cloudy sky is?
The sky is gray.
    src        edge_attr  dst
0     1  to the right of   16
1     1   to the left of   11
2     1  to the right of    5
3     1   to the left of   15
4     1   to the left of    6
..  ...              ...  ...
67   15   to the left of   14
68   16   to the left of    1
69   16  to the right of    5
70   16   to the left of    2
71   16   to the left of   11

[72 rows x 3 columns]