Is the metal mug on top of the bookshelf made out of wood?
Yes, the mug is on top of the bookshelf.
     src        edge_attr  dst
0      0   to the left of   15
1      0   to the left of   13
2      0   to the left of   18
3      0  to the right of    4
4      0   to the left of    2
..   ...              ...  ...
119   24  to the right of   23
120   25   to the left of    2
121   25        on top of   13
122   25        on top of   15
123   25  to the right of    4

[124 rows x 3 columns]