A lady in jeans and high heels.
A lady without shoes.
If  a woman has high heels, she is wearing shoes, as opposed to being without shoes.
exists s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & subset_of(x4,x2) & n_heel(x4) & a_high(s1) & Theme(s1,x4) & subset_of(x3,x2) & n_jeans(x3) & n_lady(x1))
exists x1.(a_topic(x1) & -exists x2.(with(x1,x2) & n_shoe(x2)) & n_lady(x1))