Are there DVDs to the left of the shelf that is to the left of the book?
Yes, there are DVDs to the left of the shelf.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of    8
2     0   to the left of    2
3     1  to the right of   12
4     1   to the left of   10
..  ...              ...  ...
78   17   to the left of    8
79   18  to the right of    8
80   18  to the right of    1
81   18  to the right of    2
82   18               on   15

[83 rows x 3 columns]