What do both the monitor and the chair have in common?
The color, both the monitor and the chair are black.
     src        edge_attr  dst
0      0   to the left of    5
1      0   to the left of    4
2      1   to the left of   20
3      1  to the right of    2
4      2   to the left of   27
..   ...              ...  ...
99    29  to the right of   17
100   29   to the left of   18
101   29  to the right of   31
102   29  to the right of   26
103   31   to the left of   29

[104 rows x 3 columns]