What's on the shelf?
The book is on the shelf.
    src        edge_attr  dst
0     0               of    1
1     0   to the left of    3
2     1          wearing   13
3     1   to the left of    8
4     1   to the left of    6
..  ...              ...  ...
84   16  to the right of   13
85   16               on   17
86   16   to the left of   14
87   17   to the left of    5
88   17   to the left of   14

[89 rows x 3 columns]