Some young adults sip a yellow-green drink.
the people drink a brown-blue drink
Yellow-green is inherently not brown-blue.
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_sip(e1) & n_drink(x2) & a_yellow-green(s2) & Theme(s2,x2) & n_adult(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_drink(x2) & a_brown-blue(s1) & Theme(s1,x2))