This is a woman juggling.
A woman juggles.
a woman must be juggling.
exists p1 x1.(n_thing(x1) & exists x2 x3.((x1 = x2) & n_juggling(x2) & of(x2,x3) & n_woman(x3)))
exists x1 x2.(a_topic(x1) & n_juggle(x1) & of(x1,x2) & n_woman(x2))