What is the shelf full of?
The shelf is full of toiletries.
    src        edge_attr  dst
0     0  to the right of   16
1     0  to the right of   13
2     0  to the right of    8
3     0  to the right of    6
4     0  to the right of    9
..  ...              ...  ...
72   16   to the left of   11
73   16   to the left of    5
74   17  to the right of    1
75   17  to the right of    6
76   18   to the left of   15

[77 rows x 3 columns]