On which side is the box?
The box is on the right of the image.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of   19
2     1   to the left of    4
3     1   to the left of    3
4     1  to the right of   15
..  ...              ...  ...
85   19   to the left of   17
86   19  to the right of    8
87   19   to the left of    2
88   19   to the left of   10
89   20  to the right of    5

[90 rows x 3 columns]