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