What's on the bed?
The suitcase is on the bed.
    src        edge_attr  dst
0     2   to the left of    4
1     2   to the left of   16
2     4  to the right of    8
3     4  to the right of   17
4     4  to the right of    2
5     6               of    7
6     7       sitting in    9
7     7       sitting on    9
8     7          wearing    1
9     7          wearing    5
10    7          wearing   13
11    8  to the right of   17
12    8   to the left of    4
13    8   to the left of   16
14    9               on   18
15   14               on    9
16   16  to the right of    2
17   16  to the right of    8
18   17   to the left of    4
19   17   to the left of    8