What are the books on?
The books are on the carpet.
     src        edge_attr  dst
0      0  to the right of   24
1      0   to the left of   26
2      0   to the left of    6
3      0   to the left of   21
4      0   to the left of   20
..   ...              ...  ...
107   25   to the left of    8
108   26   to the left of   12
109   26  to the right of   24
110   26  to the right of    0
111   26   to the left of   10

[112 rows x 3 columns]