What is the picture sitting on?
The picture is sitting on the desk.
    src        edge_attr  dst
0     0  to the right of    1
1     0  to the right of   13
2     1   to the left of    2
3     1   to the left of    0
4     2  to the right of    7
5     2  to the right of   10
6     2  to the right of   13
7     2  to the right of    5
8     2  to the right of    1
9     3  to the right of    4
10    3   to the left of    6
11    4   to the left of    3
12    4   to the left of   10
13    4   to the left of   13
14    4   to the left of    7
15    4   to the left of    6
16    4   to the left of    5
17    5             with   10
18    5   to the left of    2
19    5   to the left of   13
20    5  to the right of    4
21    6               on   14
22    6   to the left of   11
23    6  to the right of    3
24    6  to the right of    8
25    6  to the right of    4
26    7   to the left of    2
27    7  to the right of    4
28    8   to the left of    6
29    8   to the left of    9
30    8   to the left of   16
31    8   to the left of   15
32    9  to the right of    8
33    9  to the right of   12
34   10  to the right of    4
35   10   to the left of   13
36   10   to the left of    2
37   11  to the right of   15
38   11  to the right of    6
39   11       sitting on   14
40   12   to the left of    9
41   12   to the left of   16
42   13  to the right of   10
43   13  to the right of    5
44   13   to the left of    2
45   13  to the right of    4
46   13   to the left of    0
47   15               on   14
48   15  to the right of    8
49   15   to the left of   11
50   16  to the right of    8
51   16  to the right of   12