Two workers cooking at a food stand.
Two workers are cooking food at a fair.
Not all food stands are at a fair.
exists e1 x1 x2 x3.(at(e1,x2) & n_stand(x2) & of(x2,x3) & n_food(x3) & Actor(e1,x1) & v_cook(e1) & n_worker(x1) & card_eq_2(x1))
exists p1 x1.(exists s1 x2 x3.((x1 = x2) & at(x2,x3) & n_fair(x3) & n_food(x2) & a_cooking(s1) & Theme(s1,x2)) & n_worker(x1) & card_eq_2(x1))