Are there any clocks or crates?
Yes, there is a clock.
    src        edge_attr  dst
0     0   to the left of    2
1     2               on    9
2     2  to the right of    0
3     3             near    9
4     3             near    7
5     3             near    4
6     3             near    6
7     4   to the left of    8
8     4   to the left of    5
9     4             near    3
10    5               on    3
11    5  to the right of    6
12    5  to the right of    4
13    6             near    3
14    6   to the left of    5
15    7             near    3
16    8  to the right of    4
17    9             near    3