A man, with his shoes off, is kneeling on a rug.
A man is on his knees on a rug
A man must be on his knees in order to be kneeling on a rug.
exists e1 x1 x2 x3.(on(e1,x3) & n_rug(x3) & Actor(e1,x1) & v_kneel(e1) & with(x1,x2) & r_off(x2) & n_shoe(x2) & of(x2,x1) & n_male(x1) & n_man(x1))
exists p1 x1 x2.(exists x3.(on(x1,x2) & on(x2,x3) & n_rug(x3)) & n_knee(x2) & of(x2,x1) & n_male(x1) & n_man(x1))