a group of people wear black tophats.
A group of people.
"A group of people." must refer to "a group of people " wearing tophats
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_tophat(x3) & a_black(s1) & Theme(s1,x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists x1 x2.(a_topic(x1) & of(x1,x2) & n_people(x2) & n_group(x1))