What is on the wall?
The paper is on the wall.
    src        edge_attr  dst
0     1   to the left of    4
1     1   to the left of    5
2     1   to the left of    7
3     1   to the left of    8
4     1   to the left of   13
5     2               on   10
6     2   to the left of    4
7     3   to the left of    6
8     3   to the left of    7
9     4           behind    7
10    4  to the right of    9
11    4  to the right of   11
12    4  to the right of   12
13    4  to the right of    2
14    4  to the right of    1
15    5  to the right of    1
16    6  to the right of    3
17    7  to the right of    9
18    7  to the right of    3
19    7  to the right of    1
20    7      in front of    4
21    8       sitting on    7
22    8               on    7
23    8  to the right of    1
24    8  to the right of    9
25    9   to the left of    7
26    9   to the left of    8
27    9     growing from    3
28    9   to the left of    4
29   11   to the left of    4
30   12               on    1
31   12   to the left of    4
32   13  to the right of    1