Many of the dishes contain rice.
Some dishes have rice and beans.
Dishes containing rice does not necessarily have beans too.
exists e1 x1 x2 x3.(n_dish(x2) & Theme(e1,x3) & Actor(e1,x1) & v_contain(e1) & n_rice(x3) & of(x1,x2) & n_quantity(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_bean(x4) & n_rice(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_dish(x1))