What is the sign on?
The sign is on the wall.
    src        edge_attr  dst
0     0               on    8
1     0  to the right of    1
2     0  to the right of    9
3     1   to the left of   15
4     1   to the left of    8
5     1   to the left of    0
6     2  to the right of   10
7     2   to the left of    8
8     2  to the right of   12
9     3  to the right of   19
10    3  to the right of    6
11    3   to the left of    8
12    3  to the right of   10
13    4               on    9
14    5   to the left of    8
15    5  to the right of   19
16    5  to the right of    6
17    6   to the left of    3
18    6   to the left of    5
19    7          holding    3
20    7          holding   10
21    7          holding   12
22    7          wearing    6
23    7   to the left of    8
24    7             with    3
25    7          wearing   19
26    8  to the right of   15
27    8  to the right of    2
28    8  to the right of    1
29    8  to the right of    9
30    8  to the right of   19
31    8  to the right of    5
32    8  to the right of    3
33    8  to the right of    7
34    9   to the left of    0
35    9   to the left of    8
36   10   to the left of    3
37   10   to the left of   15
38   10   to the left of    2
39   12   to the left of    2
40   15   to the left of    8
41   15  to the right of   10
42   15  to the right of    1
43   19   to the left of    8
44   19   to the left of    5
45   19   to the left of    3