What is on the building made of brick?
The clock is on the building.
    src        edge_attr  dst
0     0  to the right of    6
1     1               on    5
2     1  to the right of    6
3     3   to the left of    6
4     4             near    5
5     4  to the right of    6
6     5  to the right of    6
7     5               on    4
8     5   on the side of    4
9     5             near    4
10    6   to the left of    4
11    6  to the right of    3
12    6   to the left of    5
13    6   to the left of    1
14    6   to the left of    0