Who is on the blanket in the bottom?
The couple is on the blanket.
    src        edge_attr  dst
0     0        flying in    5
1     0  to the right of   20
2     2   to the left of   16
3     2   to the left of   18
4     2   to the left of    7
5     2               on    1
6     2   to the left of   15
7     4        flying in    5
8     7  to the right of    2
9     7  to the right of   15
10    8       sitting in    1
11    8   to the left of    9
12    8        skiing on    3
13    8   to the left of   10
14    9  to the right of    8
15   10  to the right of    8
16   13        flying in    5
17   15   to the left of    7
18   15  to the right of    2
19   15   to the left of   16
20   16               on   18
21   16  to the right of    2
22   16  to the right of   15
23   17        flying in    5
24   17  to the right of   20
25   18  to the right of    2
26   20   to the left of   17
27   20        flying in    5
28   20   to the left of    0