Two girls cleaning a floor.
Two girls cleaning after their work shift.
When there are two girls cleaning a floor, it does not necessarily mean that either of the girls has a job, nor does it mean that the two girls are cleaning after their work shift.
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_clean(e1) & n_floor(x3) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & after(e1,x3) & n_shift(x3) & of(x3,x4) & n_work(x4) & of(x3,x1) & n_thing(x1) & Actor(e1,x2) & v_clean(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))