Is the black clock on the modern building?
Yes, the clock is on the tower.
    src        edge_attr  dst
0     0               on    1
1     0   to the left of    5
2     0   to the left of    2
3     1   to the left of    5
4     1   to the left of    4
5     1   to the left of    2
6     2  to the right of    0
7     2  to the right of    3
8     2  to the right of    1
9     2  to the right of    7
10    2  to the right of    6
11    3   to the left of    5
12    3   to the left of    2
13    3               on    0
14    4  to the right of    1
15    5               in    4
16    5  to the right of    0
17    5  to the right of    3
18    5  to the right of    1
19    5  to the right of    7
20    5  to the right of    6
21    6   to the left of    5
22    6   to the left of    2
23    7   to the left of    2
24    7   to the left of    5