Is the backpack on a suitcase?
Yes, the backpack is on a suitcase.
    src       edge_attr  dst
0     0  to the left of    4
1     0  to the left of   17
2     0  to the left of   15
3     1  to the left of   10
4     1  to the left of    8
..  ...             ...  ...
77   17              on   16
78   18              on   16
79   18  to the left of    4
80   18  to the left of   17
81   18  to the left of   15

[82 rows x 3 columns]