What are the dishes made of?
The dishes are made of plastic.
    src        edge_attr  dst
0     0  to the right of    2
1     2   to the left of    0
2     2  to the right of    7
3     3   to the left of    5
4     3   to the left of   16
5     4               on    8
6     4   to the left of   11
7     4   to the left of    6
8     5  to the right of    9
9     5  to the right of   13
10    5  to the right of    3
11    6               in   11
12    6  to the right of   17
13    6  to the right of    4
14    6  to the right of   10
15    7   to the left of    2
16    9   to the left of   13
17    9   to the left of   16
18    9   to the left of    5
19    9   to the left of   12
20   10   to the left of   17
21   10   to the left of    6
22   11               on    8
23   11  to the right of    4
24   11  to the right of   13
25   11  to the right of   12
26   12   to the left of   11
27   12  to the right of    9
28   13   to the left of   11
29   13               on    8
30   13   to the left of    5
31   13  to the right of    9
32   14               on   15
33   16  to the right of    3
34   16  to the right of    9
35   17               in    4
36   17  to the right of   10
37   17   to the left of    6