A man mixes two drinks in tall glasses.
The two drinks are being mixed by a man.
"The two drinks are being mixed by a man" is a rephrasing of "a man mixes two drinks".
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_drink(x1) & card_eq_2(x1) & Actor(e1,x2) & n_man(x2) & Theme(e1,x1) & v_mix(e1))