A group of male and female bicyclists ride down a street on a sunny day.
Some females on a bike riding down the street.
There may or may not be multiple females, also it does state that there are males as well.
exists e1 s1 s2 x1 x2 x3 x4 x5.(on(e1,x5) & n_day(x5) & a_sunny(s2) & Theme(s2,x5) & down(e1,x4) & n_street(x4) & Actor(e1,x1) & v_ride(e1) & of(x1,x2) & n_bicyclist(x2) & a_female(s1) & Theme(s1,x2) & of(x2,x3) & n_male(x3) & n_group(x1))
exists e1 x1 x2 x3 x4.(n_street(x4) & a_topic(x1) & on(x1,x2) & down(e1,x4) & Actor(e1,x3) & v_ride(e1) & (x2 = x3) & n_bike(x2) & n_female(x1))