What is the closed toilet made of?
The toilet is made of porcelain.
    src        edge_attr  dst
0     1  to the right of    2
1     2   to the left of    1
2     3  to the right of    6
3     3               on    5
4     3  to the right of    4
5     4               on    5
6     4   to the left of    3
7     5  to the right of   10
8     6   to the left of    3
9     7             near    8
10    7  to the right of   12
11    7   to the left of   11
12    7   on the side of    2
13    8   to the left of   11
14    8   on the side of    2
15    8          next to    7
16    9             near   12
17    9   to the left of   12
18   10            above   12
19   10   to the left of    5
20   11  to the right of    8
21   11  to the right of    7
22   11  to the right of   12
23   12             near    9
24   12   to the left of    7
25   12  to the right of    9
26   12            below   10
27   12   to the left of   11