Are there backpacks in this photo?
Yes, there is a backpack.
    src        edge_attr  dst
0     0  to the right of   19
1     0  to the right of   12
2     0  to the right of   11
3     0  to the right of    6
4     0  to the right of    8
..  ...              ...  ...
74   19   to the left of    0
75   19   to the left of   12
76   19   to the left of   11
77   19   to the left of   10
78   19   to the left of    6

[79 rows x 3 columns]