A young couple prepare a salad together in their kitchen.
The couple are vegetarians.
People preparing a salad are not necessarily vegetarians.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_prepare(e1) & in(x2,x3) & n_kitchen(x3) & of(x3,x1) & n_thing(x1) & r_together(x2) & n_salad(x2) & n_couple(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1.(n_couple(x1) & exists x2.((x1 = x2) & n_vegetarian(x2)))