A man mixes two drinks in tall glasses.
The man pours two beers.
A man mixes two drinks.  Beer is not mixed.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_mix(e1) & in(x2,x3) & n_glass(x3) & a_tall(s1) & Theme(s1,x3) & n_drink(x2) & card_eq_2(x2) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_pour(e1) & n_beer(x2) & card_eq_2(x2))