A girl is riding her bike at night.
A girl is outside at night.
Riding her bike implies that the girl is outside.
exists e1 x1 x2 x3.(at(e1,x3) & n_night(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & of(x2,x1) & n_female(x1) & n_girl(x1))
exists s1 x1 x2.(at(s1,x2) & n_night(x2) & Theme(s1,x1) & a_outside(s1) & n_girl(x1))