The sky is blue
There are no clouds in teh sky.
Sentence 1: The sky is blue Sentence 2: There are no clouds in teh sky.
exists s1 x1.(n_sky(x1) & Theme(s1,x1) & a_blue(s1))
exists p1 x1.-exists s1 x2 x3.((x1 = x2) & in(x2,x3) & n_sky(x3) & a_teh(s1) & Theme(s1,x3) & n_cloud(x2))