Two men are drinking beer.
Two sad men are drinking beer.
Not all men are sad.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_beer(x2) & n_man(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_beer(x2) & n_man(x1) & a_sad(s1) & Theme(s1,x1) & card_eq_2(x1))