What is the clock on?
The clock is on the oven.
    src        edge_attr  dst
0     0   to the left of    4
1     2  to the right of    5
2     4  to the right of    0
3     4  to the right of    6
4     5   to the left of    7
5     5   to the left of    2
6     5   to the left of    8
7     5   to the left of   10
8     5   to the left of   12
9     5   to the left of    9
10    5   to the left of   11
11    6   to the left of    4
12    6               on    1
13    7               on   10
14    7  to the right of    5
15    8  to the right of    5
16    9  to the right of    5
17   10  to the right of    5
18   11  to the right of    5
19   12  to the right of    5