What is under the cake?
The tray is under the cake.
    src        edge_attr  dst
0     0  to the right of   11
1     0  to the right of    2
2     1         watching    2
3     1  to the right of   12
4     1  to the right of    2
..  ...              ...  ...
65   15            above   16
66   16            below   15
67   16            under   15
68   16  to the right of    6
69   16  to the right of    3

[70 rows x 3 columns]