Is the material of the bookcase the same as the cabinet?
Yes, both the bookcase and the cabinet are made of wood.
     src        edge_attr  dst
0      0               on   25
1      0  to the right of   29
2      1  to the right of   22
3      1  to the right of   12
4      1   to the left of   28
..   ...              ...  ...
140   29   to the left of   25
141   29   to the left of   24
142   29   to the left of   14
143   29   to the left of    6
144   29   to the left of    0

[145 rows x 3 columns]