A man throws a disc in a park.
A person in a park
a man refers to a person
exists e1 x1 x2 x3.(in(e1,x3) & n_park(x3) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_disc(x2) & n_man(x1))
exists x1 x2.(a_topic(x1) & in(x1,x2) & n_park(x2) & n_person(x1))