The clock is on what?
The clock is on the wall.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of   26
2     1   to the left of   26
3     1   to the left of    4
4     2   to the left of    3
..  ...              ...  ...
61   25               on   15
62   25   to the left of    7
63   26  to the right of    1
64   26   to the left of    4
65   26   to the left of    0

[66 rows x 3 columns]