What is the clock sitting on?
The clock is sitting on the hard drive.
     src        edge_attr  dst
0      0   to the left of   22
1      0   to the left of   21
2      0   to the left of   28
3      0  to the right of   24
4      0  to the right of   16
..   ...              ...  ...
152   29  to the right of   26
153   29   to the left of   24
154   29   to the left of   16
155   29               on   14
156   29      in front of    5

[157 rows x 3 columns]