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