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