Is the wall behind a bed?
No, the wall is behind the person.
    src        edge_attr  dst
0     1  to the right of    7
1     1   to the left of   12
2     2   to the left of    3
3     3  to the right of    2
4     4   to the left of   12
5     4  to the right of   17
6     4               on    8
7     7  to the right of   17
8     7   to the left of   12
9     7   to the left of    1
10    7   to the left of   14
11    8   to the left of   12
12    8  to the right of   17
13    9               on   13
14    9          reading    1
15    9          wearing    4
16    9          wearing    0
17    9          wearing    3
18    9          holding    1
19    9          wearing   15
20    9      in front of   16
21    9  to the right of   17
22   10   to the left of   11
23   11               on   13
24   11  to the right of   10
25   12  to the right of    8
26   12  to the right of    7
27   12  to the right of   17
28   12  to the right of    4
29   12  to the right of    1
30   12  to the right of   14
31   14  to the right of   17
32   14  to the right of    7
33   14   to the left of   12
34   15  to the right of   17
35   16           behind    9
36   17   to the left of    7
37   17   to the left of    8
38   17   to the left of    4
39   17   to the left of    9
40   17   to the left of   12
41   17   to the left of   14
42   17   to the left of   15