Do you see black shelves or microwaves?
Yes, there is a black microwave.
    src        edge_attr  dst
0     0  to the right of    7
1     0  to the right of   18
2     0  to the right of    3
3     0   to the left of    1
4     0  to the right of    2
..  ...              ...  ...
71   19   to the left of    9
72   19  to the right of    2
73   19  to the right of   15
74   19  to the right of    6
75   19   to the left of    5

[76 rows x 3 columns]