What is the bag that is made of plastic filled with?
The bag is filled with pepperoni.
    src        edge_attr  dst
0     2               of    4
1     3               of    6
2     3   to the left of   11
3     5  to the right of   11
4     5               of   10
5     5      filled with   10
6     7       sitting in    8
7     7        preparing   15
8    10  to the right of   11
9    11  to the right of    3
10   11   to the left of    5
11   11   to the left of   10