Is the knife on the right side or on the left of the image?
The knife is on the right of the image.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of   13
2     0  to the right of   11
3     1   to the left of    8
4     1   to the left of    2
..  ...              ...  ...
63   17   to the left of   12
64   17  to the right of    1
65   17   to the left of   14
66   18  to the right of    1
67   18   to the left of   15

[68 rows x 3 columns]