What dessert is on top of the plate?
The dessert is a cake.
    src        edge_attr  dst
0     1   on the side of    5
1     1   on the edge of    5
2     2        on top of    0
3     2             with    7
4     2        on top of    4
5     2             with    5
6     4        on top of    0
7     4             with    2
8     4  to the right of    6
9     5        on top of    2
10    6       resting on    4
11    6       leaning on    4
12    6        on top of    0
13    6        on top of    4
14    6   to the left of    4
15    7        on top of    2
16    7        on top of    5