A man in a suit is walking.
A man with pants.
one man can be in pants when he is in a suit
exists e1 x1 x2.(Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_suit(x2) & n_man(x1))
exists x1 x2.(a_topic(x1) & with(x1,x2) & n_pants(x2) & n_man(x1))