What's the sky full of?
The sky is full of clouds.
     src        edge_attr  dst
0      0          full of    9
1      1  to the right of   14
2      1   to the left of    6
3      1  to the right of   17
4      1   to the left of   20
..   ...              ...  ...
99    20  to the right of    7
100   20  to the right of    4
101   20   to the left of    6
102   20  to the right of   17
103   20  to the right of   11

[104 rows x 3 columns]