Does the sky seem to be clear and dark?
Yes, the sky is clear and dark.
    src        edge_attr  dst
0     0            above    6
1     0             near    1
2     0            above    1
3     1             near    6
4     1             near    0
5     1  to the right of    5
6     1  to the right of    3
7     2               on    1
8     2  to the right of    5
9     3   to the left of    1
10    5   to the left of    2
11    5   to the left of    1
12    6             near    1