Several construction workers are looking at an escalator
Workers look at an escalator.
Workers and construction workers are the same thing.
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_escalator(x3) & Actor(e1,x1) & v_look(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2.(at(e1,x2) & n_escalator(x2) & Actor(e1,x1) & v_look(e1) & n_worker(x1))