What do the laptop and the couch have in common?
The color, both the laptop and the couch are black.
    src       edge_attr  dst
0     0  to the left of    1
1     0  to the left of    8
2     0  to the left of    7
3     0  to the left of    2
4     0  to the left of    5
..  ...             ...  ...
67   16           using   15
68   18  to the left of    8
69   18  to the left of   15
70   18  to the left of   16
71   18  to the left of   10

[72 rows x 3 columns]