What's the clock in front of?
The clock is in front of the tower.
    src        edge_attr  dst
0     0   to the left of   13
1     0            below    6
2     0            above    7
3     2        on top of   17
4     2        on top of    6
5     2               on   17
6     2            above    6
7     2               on    5
8     3               in    1
9     3   to the left of    5
10    4               in    1
11    4  to the right of    5
12    5  to the right of   12
13    5   to the left of    4
14    5  to the right of    3
15    5   to the left of    8
16    5           behind    7
17    6               on    5
18    6               on   17
19    6        on top of   17
20    6            above   13
21    6            above    0
22    6            below    2
23    7               on   17
24    7            below   13
25    7      in front of    5
26    7               on    5
27    7            below    0
28    8  to the right of    5
29    8               in    1
30    9   to the left of   13
31   11      in front of   17
32   11  to the right of   12
33   12   to the left of    5
34   12      in front of   17
35   12   to the left of   11
36   13  to the right of    0
37   13            below    6
38   13  to the right of    9
39   13            above    7
40   14   to the left of   15
41   15  to the right of   14