a boy wears a red coat.
A boy wears a jacket without a coat.
There is either a coat or a jacket.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_coat(x2) & a_red(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 x1 x2.(-exists x3.(with(e1,x3) & n_coat(x3)) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_jacket(x2) & n_boy(x1))