Is the couple watching a flag?
No, the couple is watching the kite.
    src        edge_attr  dst
0     0               by    2
1     0  to the right of    2
2     0  to the right of   12
3     1               of    9
4     2   to the left of    0
5     2       looking at    9
6     2         watching    9
7     2   to the left of   10
8     3           flying    4
9     3           flying    9
10    4               in    6
11    9               in    6
12   10  to the right of   11
13   10  to the right of    2
14   10  to the right of   12
15   11   to the left of   10
16   12   to the left of    0
17   12   to the left of   10