Which side of the picture is the napkin on?
The napkin is on the right of the image.
    src        edge_attr  dst
0     0   to the left of   11
1     0  to the right of    1
2     0   to the left of   21
3     0   to the left of   12
4     1  to the right of    7
..  ...              ...  ...
84   21   to the left of   12
85   22               on   20
86   22   to the left of    9
87   22   to the left of    1
88   22   to the left of    8

[89 rows x 3 columns]