A young woman laughing.
Someone is amused.
a young woman is someone and she is laughing because she is amused
exists e1 s1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_laugh(e1) & (x1 = x2) & n_woman(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1.(Theme(e1,x1) & v_amuse(e1) & n_person(x1))