What is the bag made of?
The bag is made of plastic.
    src        edge_attr  dst
0     1  to the right of   10
1     4   to the left of   13
2     4   to the left of   12
3     5   to the left of    9
4     5  to the right of   14
5     7               on    6
6     9  to the right of    5
7     9  to the right of   14
8     9  to the right of   11
9    10   to the left of   15
10   10   to the left of    1
11   11   to the left of    9
12   12  to the right of   13
13   12  to the right of    4
14   13  to the right of    4
15   13   to the left of   12
16   14   to the left of    9
17   14   to the left of    5
18   15  to the right of   10