A child swims with a woman.
a child and woman swim
A child who swims with a woman is swimming alongside her.
exists e1 x1 x2.(with(e1,x2) & n_woman(x2) & Actor(e1,x1) & v_swim(e1) & n_child(x1))
exists s1 x1 x2 x3.(a_topic(s1) & subset_of(x2,s1) & n_swim(x2) & of(x2,x3) & n_woman(x3) & subset_of(x1,s1) & n_child(x1))