Are both the tub and the bucket made of the same material?
Yes, both the tub and the bucket are made of metal.
    src        edge_attr  dst
0     0               on   12
1     1  to the right of    4
2     1   to the left of    6
3     1  to the right of    5
4     1   to the left of   10
5     4   to the left of    9
6     4   to the left of    1
7     5   to the left of    1
8     6  to the right of    1
9     6  to the right of    9
10    6  to the right of   10
11    7  to the right of    8
12    7  to the right of   12
13    8   to the left of    7
14    9   to the left of    6
15    9   to the left of   10
16    9  to the right of    4
17   10   to the left of    6
18   10  to the right of    1
19   10  to the right of   12
20   10  to the right of    9
21   11             near   12
22   12   to the left of   10
23   12   to the left of    7
24   12          next to   11