A woman with no shirt rides a bike.
A human with no shirt.
A human  was a woman with no shirt.
exists x1.(-exists e1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & n_bike(x3) & with(x1,x2) & n_shirt(x2)) & n_woman(x1))
exists x1.(-exists x2.(a_topic(x1) & with(x1,x2) & n_shirt(x2)) & n_human(x1))