Are there cages or clocks?
No, there are no clocks or cages.
    src        edge_attr  dst
0     0   to the left of    6
1     0   to the left of    1
2     0   to the left of    3
3     0   to the left of    8
4     0   to the left of    2
5     0   to the left of   10
6     1  to the right of    0
7     2  to the right of    0
8     2  to the right of    8
9     2  to the right of    7
10    3  to the right of    0
11    5   to the left of   10
12    5   to the left of    6
13    6  to the right of    0
14    6  to the right of    5
15    7   to the left of    2
16    8   to the left of    2
17    8  to the right of    0
18   10  to the right of    0
19   10  to the right of    5