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