What is the flag in front of?
The flag is in front of the clouds.
    src        edge_attr  dst
0     1      swimming in    3
1     1               in    3
2     2               in    0
3     2      in front of    4
4     2               on    7
5     4               in    9
6     4           behind    2
7     5       playing in    3
8     5   to the left of    8
9     5   to the left of    6
10    6  to the right of    5
11    6  to the right of   10
12    6  to the right of   12
13    8               in    3
14    8  to the right of   10
15    8  to the right of   12
16    8  to the right of    5
17   10   to the left of    8
18   10   to the left of    6
19   11  to the right of   13
20   12   to the left of    6
21   12   to the left of    8
22   13   to the left of   11