What is the color of the sky?
The sky is gray.
     src        edge_attr  dst
0      1   to the left of   12
1      1               of    2
2      1            above   30
3      1   to the left of   11
4      1            above   35
..   ...              ...  ...
149   34  to the right of    4
150   34  to the right of   29
151   34  to the right of   27
152   34  to the right of   28
153   35  to the right of   30

[154 rows x 3 columns]