An african american in sunglasses and a white tee-shirt smiles.
The person is happy.
Just because he is smiling doesn't mean he is happy.
exists s1 s2 s3 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & subset_of(x4,x2) & n_smile(x4) & a_tee-shirt(s3) & Theme(s3,x4) & a_white(s2) & Theme(s2,x4) & subset_of(x3,x2) & n_sunglass(x3) & n_american(x1) & a_african(s1) & Theme(s1,x1))
exists s1 x1.(n_person(x1) & Theme(s1,x1) & a_happy(s1))