Is the sky cloudy and white?
Yes, the sky is cloudy and white.
    src        edge_attr  dst
0     1   to the left of    6
1     1   to the left of    5
2     3   to the left of   11
3     3   to the left of   15
4     5   to the left of    6
5     5  to the right of    1
6     6  to the right of    1
7     6  to the right of    5
8    11  to the right of    3
9    12               on    0
10   15  to the right of    3