A girl is riding her bike at night.
A girl is riding her bike during the day.
It cannot be night and day at the same time.
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 e1 x1 x2 x3.(n_day(x3) & during(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & of(x2,x1) & n_female(x1) & n_girl(x1))