What item of furniture is the book on, a desk or a shelf?
The book is on a desk.
    src          edge_attr  dst
0     0                 on    8
1     0     to the left of   15
2     0          on top of    8
3     0     to the left of    9
4     1              below    8
5     1         sitting on   10
6     1     to the left of   11
7     2     to the left of   13
8     2                 on    8
9     2    to the right of    5
10    2     on the edge of    8
11    2     to the left of    7
12    3                 on    8
13    3    to the right of    5
14    4     on the side of   15
15    4               near   15
16    4            next to   15
17    4                 on    8
18    5                 on    8
19    5     to the left of    2
20    5     to the left of    3
21    5          on top of    8
22    7          on top of    8
23    7    to the right of   13
24    7     to the left of   12
25    7     to the left of   14
26    7                 on    8
27    7    to the right of    2
28    8              above    1
29    9    to the right of    0
30   11                 on   10
31   11    to the right of    1
32   12    to the right of    7
33   12                 by    7
34   13    to the right of    2
35   13     to the left of    7
36   13         sitting on    8
37   14    to the right of    7
38   15  sitting on top of    8
39   15         sitting on    8
40   15               near    4
41   15          on top of    8
42   15                 on    8
43   15    to the right of    0