What is the material of the fork to the left of the plate?
The fork is made of plastic.
    src        edge_attr  dst
0     0   to the left of    8
1     0   to the left of   17
2     0   to the left of   14
3     0   to the left of   15
4     2  to the right of   17
5     2  to the right of    3
6     2   to the left of   11
7     2  to the right of    7
8     2   to the left of   10
9     2  to the right of   15
10    2  to the right of    9
11    2  to the right of   16
12    3   to the left of   11
13    3   to the left of    2
14    3   to the left of    6
15    3  to the right of    4
16    3   to the left of   10
17    3  to the right of   13
18    4   to the left of    3
19    5   to the left of    8
20    6  to the right of    3
21    7   to the left of    2
22    7   to the left of   17
23    7   to the left of   14
24    7   to the left of   15
25    7   to the left of    8
26    8  to the right of    5
27    8  to the right of    0
28    8  to the right of    7
29    8   to the left of   12
30    9   to the left of    2
31   10  to the right of    2
32   10  to the right of    3
33   11  to the right of    3
34   11  to the right of    2
35   12  to the right of    8
36   13   to the left of    3
37   13   to the left of   16
38   14  to the right of    0
39   14  to the right of    7
40   15  to the right of    7
41   15   to the left of    2
42   15  to the right of    0
43   16               on    3
44   16             with    9
45   16   to the left of    2
46   16  to the right of   13
47   17   to the left of    2
48   17  to the right of    0
49   17  to the right of    7