What material is the oven to the right of the other oven?
The oven is made of metal.
    src        edge_attr  dst
0     0   to the left of    3
1     0  to the right of   10
2     0   to the left of   14
3     0  to the right of   15
4     0  to the right of   16
5     1   to the left of   11
6     1   to the left of    4
7     2   to the left of   19
8     2   to the left of   18
9     3   to the left of   13
10    3  to the right of    0
11    3   to the left of   12
12    3  to the right of   14
13    4  to the right of    8
14    4  to the right of    1
15    4  to the right of   17
16    5  to the right of   10
17    5   to the left of   13
18    7   to the left of   18
19    8   to the left of    4
20    8   to the left of   11
21   10   to the left of    5
22   10   to the left of    0
23   10   to the left of   15
24   10   to the left of   20
25   11  to the right of    8
26   11  to the right of   17
27   11  to the right of    1
28   12  to the right of    3
29   12  to the right of   14
30   12   to the left of   13
31   13  to the right of   14
32   13  to the right of    5
33   13  to the right of    3
34   13  to the right of   12
35   13  to the right of   20
36   14  to the right of   16
37   14   to the left of   13
38   14   to the left of    3
39   14   to the left of   12
40   14  to the right of   15
41   14  to the right of    0
42   15   to the left of   14
43   15  to the right of   10
44   15   to the left of    0
45   15  to the right of   16
46   16   to the left of   15
47   16   to the left of   14
48   16   to the left of    0
49   17   to the left of    4
50   17   to the left of   11
51   18  to the right of    2
52   18   to the left of   19
53   18  to the right of    7
54   19  to the right of   18
55   19  to the right of    2
56   20  to the right of   10
57   20   to the left of   13