How big is the dessert that is below the counter?
The cake is small.
    src          edge_attr  dst
0     0          on top of    6
1     0     to the left of    7
2     1    to the right of    7
3     1          on top of    8
4     2          on top of    8
5     2          on top of    4
6     3          on top of    4
7     6  sitting on top of    9
8     6              below    8
9     7          on top of    6
10    7    to the right of    0
11    7     to the left of    1
12    8              above    6