What kind of animal is the sky behind of, a sheep or a goat?
The sky is behind a sheep.
    src        edge_attr  dst
0     0   to the left of    9
1     0   to the left of    2
2     0   to the left of    4
3     0   to the left of    1
4     0   to the left of    6
5     0   to the left of    5
6     1  to the right of    2
7     1  to the right of    0
8     2  to the right of    0
9     2   to the left of    1
10    2   to the left of    4
11    2   to the left of    5
12    2   to the left of    9
13    4               of   13
14    4   to the left of    5
15    4  to the right of    0
16    4  to the right of    2
17    4  to the right of    6
18    5  to the right of    2
19    5               of   13
20    5  to the right of    4
21    5  to the right of    0
22    6  to the right of    0
23    6   to the left of    4
24    6               of   13
25    8           behind   13
26    9  to the right of    2
27    9               of   13
28    9  to the right of    0
29   13      in front of    8