Is the knife on the right or on the left?
The knife is on the left of the image.
    src        edge_attr  dst
0     0  to the right of    7
1     0  to the right of   17
2     0  to the right of   14
3     1  to the right of   15
4     1   to the left of    2
..  ...              ...  ...
90   23               in   20
91   23  to the right of   12
92   23   to the left of    6
93   23  to the right of   15
94   23  to the right of   19

[95 rows x 3 columns]