What is on the wall that is behind the man?
The papers are on the wall.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of    9
2     0  to the right of    2
3     0               on    6
4     0   to the left of    8
5     0  to the right of    5
6     0  to the right of    1
7     1      in front of    6
8     1   to the left of   11
9     1  to the right of    4
10    1   to the left of    2
11    1   to the left of    0
12    1   to the left of   10
13    1   to the left of    9
14    2      in front of    6
15    2  to the right of    1
16    2   to the left of    0
17    2  to the right of    3
18    2  to the right of    4
19    2   to the left of    8
20    2   to the left of   11
21    3   to the left of    2
22    3   to the left of    9
23    4   to the left of    9
24    4   to the left of    5
25    4               on    6
26    4   to the left of    2
27    4   to the left of    1
28    5   to the left of   10
29    5  to the right of    4
30    5               on    6
31    5   to the left of    0
32    6           behind    2
33    6           behind    1
34    6   to the left of    7
35    6   to the left of    8
36    7  to the right of    6
37    8               on    7
38    8  to the right of    6
39    8  to the right of    2
40    8  to the right of    0
41    9  to the right of    1
42    9  to the right of    3
43    9   to the left of    0
44    9   to the left of   11
45    9  to the right of    4
46   10   to the left of   11
47   10  to the right of    1
48   10               on    6
49   10   to the left of    0
50   10  to the right of    5
51   11  to the right of    2
52   11  to the right of    1
53   11  to the right of   10
54   11  to the right of    9