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