What is on the wall that looks yellow and green?
The paper is on the wall.
    src        edge_attr  dst
0     0   to the left of    4
1     1               on    8
2     1   to the left of    7
3     1   to the left of    6
4     1   to the left of   11
5     1   to the left of   10
6     1  to the right of    5
7     1  to the right of    2
8     2   to the left of    1
9     2  to the right of    5
10    2   to the left of    8
11    4               on    0
12    4  to the right of    0
13    5               of    3
14    5   to the left of    8
15    5   to the left of    2
16    5   to the left of    1
17    6       mounted on    7
18    6  to the right of    1
19    6  to the right of    8
20    6            above   11
21    7  to the right of    8
22    7  to the right of    1
23    8  to the right of    5
24    8   to the left of    6
25    8  to the right of    2
26    8   to the left of    7
27    8   to the left of   10
28    8   to the left of   11
29   10  to the right of    1
30   10  to the right of    8
31   11            under    6
32   11  to the right of    1
33   11  to the right of    8