Is there any window or clock in the scene?
Yes, there is a window.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    5
2     1  to the right of   26
3     2   to the left of   10
4     2   to the left of    9
..  ...              ...  ...
93   26  to the right of   19
94   26  to the right of   16
95   26  to the right of   18
96   26  to the right of   14
97   26  to the right of   25

[98 rows x 3 columns]