Do you see both baseballs and books?
No, there is a baseball but no books.
    src        edge_attr  dst
0     0  to the right of   14
1     0  to the right of    9
2     0  to the right of    4
3     0  to the right of    3
4     1  to the right of    8
..  ...              ...  ...
67   18   to the left of   14
68   18   to the left of    9
69   18   to the left of    3
70   19  to the right of    1
71   19  to the right of    6

[72 rows x 3 columns]