What is located on top of the building made of brick?
The chimney is on top of the building.
    src        edge_attr  dst
0     1  to the right of    3
1     2      in front of    3
2     3   to the left of    7
3     3   to the left of    1
4     3   to the left of   14
5     3           behind    2
6     5  to the right of   12
7     6   to the left of    7
8     7  to the right of    3
9     7   to the left of   13
10    7  to the right of    6
11    9        on top of    3
12   11   to the left of   12
13   12   to the left of    5
14   12  to the right of   11
15   13  to the right of    7
16   14  to the right of    3