A man in a sweater and black pants waits.
A man in a sweater waits for food.
A man in a sweater waiting for food doesn't necessary imply that he is wearing black pants.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & subset_of(x4,x2) & n_wait(x4) & of(x4,x5) & n_pants(x5) & a_black(s1) & Theme(s1,x4) & subset_of(x3,x2) & n_sweater(x3) & n_man(x1))
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & for(x2,x4) & n_food(x4) & n_wait(x2) & of(x2,x3) & n_sweater(x3) & n_man(x1))