a man bent down gathering books.
There is a man with books.
Since the man is gathering books he is with books
exists x1 x2 x3 x4.(a_topic(x1) & down(x1,x3) & n_book(x3) & of(x3,x4) & n_gathering(x4) & n_bent(x1) & of(x1,x2) & n_man(x2))
exists p1 x1 x2 x3.((x1 = x2) & with(x2,x3) & n_book(x3) & n_man(x2))