Two girls sitting in class.
The class is sitting quietly.
The girls are sitting quietly in the class
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_class(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists e1 p1 x1.(n_class(x1) & exists s1.(Theme(s1,x1) & a_quietly(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_sit(e1))