What color is the sky?
The sky is gray.
    src        edge_attr  dst
0     0  to the right of   12
1     0   to the left of   14
2     0   to the left of    2
3     0  to the right of    4
4     1  to the right of   15
5     1   to the left of    6
6     2  to the right of   14
7     2  to the right of    0
8     2  to the right of   12
9     2  to the right of    4
10    3  to the right of    7
11    4   to the left of   14
12    4   to the left of   12
13    4   to the left of    2
14    4   to the left of    0
15    5  to the right of   13
16    5               on    8
17    5  to the right of    6
18    5               in    8
19    6  to the right of    1
20    6  to the right of   15
21    6   to the left of    5
22    7   to the left of    3
23   11               on    5
24   12   to the left of    2
25   12   to the left of    0
26   12   to the left of   14
27   12  to the right of    4
28   13      in front of    1
29   13   to the left of    5
30   14  to the right of    4
31   14  to the right of   12
32   14   to the left of    2
33   14  to the right of    0
34   15   to the left of    6
35   15   to the left of    1