What is the container made of?
The container is made of plastic.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    6
2     0   to the left of    2
3     0   to the left of    4
4     0   to the left of    5
5     1   to the left of   14
6     1   to the left of   12
7     1   to the left of   13
8     1   to the left of   10
9     2  to the right of    0
10    2  to the right of   10
11    3  to the right of   10
12    3  to the right of    0
13    4  to the right of    0
14    4   to the left of    5
15    5  to the right of    4
16    5  to the right of    6
17    5  to the right of    0
18    6  to the right of    0
19    6   to the left of    5
20    7  to the right of   10
21   10  to the right of    1
22   10  to the right of   13
23   10   to the left of    2
24   10   to the left of    3
25   10   to the left of    7
26   10  to the right of   12
27   10       sitting on    9
28   12  to the right of   13
29   12  to the right of    1
30   12   to the left of   10
31   13  to the right of    1
32   13   to the left of   14
33   13   to the left of   10
34   13   to the left of   12
35   14  to the right of   13
36   14  to the right of    1