What do the curtains hang from?
The curtains hang from the windows.
    src        edge_attr  dst
0     1               on   12
1     1   to the left of   21
2     2  to the right of   21
3     2  to the right of    5
4     3  to the right of   19
5     3               on   13
6     4               on    7
7     4   to the left of   21
8     5               of   20
9     5   to the left of    2
10    6        on top of    7
11    6               on   18
12    6  to the right of   16
13    7   to the left of   11
14   11  to the right of    7
15   11  to the right of   18
16   11   to the left of   17
17   12               of   20
18   12   to the left of   21
19   15     hanging from   19
20   16   to the left of    6
21   16               on    7
22   17  to the right of   11
23   17  to the right of   18
24   18   to the left of   11
25   18   to the left of   17
26   19   to the left of    3
27   19   to the left of   22
28   21  to the right of    4
29   21  to the right of   12
30   21  to the right of    1
31   21   to the left of    2
32   22  to the right of   19