Are there cars or clocks in the picture?
Yes, there is a clock.
    src        edge_attr  dst
0     0  to the right of   10
1     2  to the right of    6
2     3  to the right of    6
3     3  to the right of    7
4     3  to the right of   13
5     4  to the right of    6
6     5  to the right of    7
7     5  to the right of    6
8     6   to the left of    9
9     6  to the right of    8
10    6   to the left of    7
11    6   to the left of    3
12    6   to the left of    2
13    6   to the left of    5
14    6   to the left of   13
15    6   to the left of   12
16    6   to the left of    4
17    6   to the left of   11
18    7   to the left of    5
19    7  to the right of    6
20    7   to the left of    3
21    7  to the right of   13
22    8   to the left of    6
23    9  to the right of    6
24   10   to the left of    0
25   11  to the right of    6
26   12  to the right of    6
27   13   to the left of    7
28   13  to the right of    6
29   13   to the left of    3