Do you see either any chairs or doors that are metallic?
Yes, the door is metallic.
     src        edge_attr  dst
0      0   to the left of   18
1      0   to the left of    3
2      0   to the left of    1
3      0   to the left of   22
4      0   to the left of   21
..   ...              ...  ...
143   26   to the left of   24
144   26   to the left of    0
145   27   to the left of   25
146   27  to the right of   22
147   27  to the right of    4

[148 rows x 3 columns]