Two construction workers in green helmets are at work.
Two workers are shown working on the houses foundation.
Two construction workers in green helmets are at work does not mean they are shown working on the houses foundation
exists p1 s1 x1 x2 x3.(exists x4.(at(x1,x4) & n_work(x4)) & in(x1,x3) & n_helmet(x3) & a_green(s1) & Theme(s1,x3) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))
exists e2 e1 x1 x2 x3.(n_house(x2) & for(e1,e2) & on(e2,x2) & Time(x2,x3) & n_foundation(x3) & Actor(e2,x1) & v_work(e2) & Theme(e1,x1) & v_show(e1) & n_worker(x1) & card_eq_2(x1))