Which kind of furniture is the cereal on?
The cereal is on the shelf.
    src        edge_attr  dst
0     0   to the left of    8
1     1               in   10
2     2               on    0
3     3               on    8
4     4               in   10
5     4   to the left of   11
6     4   to the left of   13
7     6               on    7
8     8  to the right of   13
9     8  to the right of   11
10    8  to the right of    0
11   11   to the left of    8
12   11  to the right of    4
13   13               on   11
14   13   to the left of    8
15   13  to the right of    4