What is in front of the building the clock is on?
The tree is in front of the tower.
    src        edge_attr  dst
0     1             with    5
1     1           behind    7
2     1  to the right of    8
3     2  to the right of    8
4     4               in    3
5     6               on    1
6     6        on top of    1
7     7      in front of    8
8     7      in front of    1
9     7               by    8
10    7  to the right of    8
11    8   to the left of    7
12    8   to the left of    2
13    8           behind    7
14    8   to the left of    1