Do you see any clocks there that are not gold?
No, there is a clock but it is gold.
    src        edge_attr  dst
0     0   to the left of   12
1     0   to the left of   19
2     0  to the right of   17
3     0  to the right of   16
4     0   to the left of   14
5     0               on   13
6     1   to the left of    5
7     1   to the left of   11
8     2   to the left of    9
9     2  to the right of   13
10    2  to the right of   15
11    3  to the right of   19
12    3               on    5
13    4               on    5
14    4  to the right of   13
15    5  to the right of    1
16    5  to the right of   16
17    5  to the right of   11
18    5  to the right of   18
19    5  to the right of   15
20    5  to the right of   13
21    5  to the right of    8
22    5  to the right of    6
23    5  to the right of   17
24    6               on   10
25    6   to the left of   11
26    6   to the left of    5
27    8   to the left of   11
28    8   to the left of    5
29    9  to the right of   15
30    9  to the right of   13
31    9  to the right of    2
32   11  to the right of    1
33   11  to the right of    8
34   11   to the left of    5
35   11  to the right of    6
36   12  to the right of    0
37   13   to the left of    9
38   13   to the left of    2
39   13   to the left of    5
40   13   to the left of   19
41   13   to the left of    4
42   14  to the right of    0
43   15   to the left of    5
44   15   to the left of    2
45   15   to the left of    9
46   16   to the left of    0
47   16   to the left of    5
48   16   to the left of   17
49   17   to the left of   19
50   17   to the left of    5
51   17   to the left of    0
52   17  to the right of   16
53   18   to the left of    5
54   19  to the right of    0
55   19  to the right of   17
56   19   to the left of    3
57   19  to the right of   13