What is the lamp on?
The lamp is on the desk.
    src        edge_attr  dst
0     0            under    2
1     0  to the right of    4
2     0            below    2
3     0  to the right of    3
4     1  to the right of   14
..  ...              ...  ...
61   14  to the right of   10
62   14        on top of   13
63   15  to the right of    6
64   16  to the right of    2
65   16               on   15

[66 rows x 3 columns]