Do these people all have the same gender?
No, they are both male and female.
    src        edge_attr  dst
0     0   to the left of    1
1     1   to the left of    5
2     1  to the right of    0
3     1   to the left of   10
4     1   to the left of    9
..  ...              ...  ...
61   19  to the right of   10
62   19  to the right of   14
63   19   to the left of   18
64   20   to the left of    1
65   20   to the left of   14

[66 rows x 3 columns]