Is the white cake on the tray?
Yes, the cake is on the tray.
     src        edge_attr  dst
0      0   to the left of   42
1      0  to the right of   44
2      1               on   40
3      1  to the right of   33
4      1  to the right of   24
..   ...              ...  ...
292   56   to the left of   38
293   56  to the right of   31
294   56  to the right of   21
295   56  to the right of   49
296   56   to the left of   51

[297 rows x 3 columns]