Are there clocks in this picture?
Yes, there is a clock.
    src        edge_attr  dst
0     0  to the right of    3
1     2               on   15
2     3   to the left of   14
3     3   to the left of   16
4     3   to the left of   11
5     3   to the left of    5
6     3   to the left of    4
7     3   to the left of    0
8     3   to the left of   18
9     3   to the left of   12
10    3   to the left of    6
11    3   to the left of   13
12    3   to the left of    8
13    4  to the right of   10
14    4  to the right of    3
15    5  to the right of   10
16    5  to the right of    3
17    6  to the right of    3
18    6  to the right of   10
19    7   to the left of   13
20    7  to the right of    9
21    8  to the right of    3
22    8  to the right of   10
23    9   to the left of   13
24    9   to the left of    7
25   10   to the left of    6
26   10   to the left of   16
27   10   to the left of   18
28   10   to the left of    4
29   10   to the left of    5
30   10   to the left of    8
31   10   to the left of   12
32   11  to the right of    3
33   12  to the right of   10
34   12  to the right of    3
35   13  to the right of    3
36   13  to the right of    9
37   13  to the right of    7
38   13             near   16
39   14  to the right of    3
40   16  to the right of   10
41   16          next to   13
42   16  to the right of    3
43   18               in   17
44   18  to the right of   10
45   18  to the right of    3