What is the dessert in the container that is made of plastic?
The dessert is a cake.
   src        edge_attr  dst
0    0  to the right of    4
1    0   to the left of    1
2    1  to the right of    0
3    1  to the right of    4
4    2               in    3
5    4   to the left of    1
6    4   to the left of    0