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