A person standing on a frozen lake.
a person standing on a lake
A person standing on a lake is a generalized form of a person standing on a frozen lake.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_lake(x3) & a_frozen(s1) & Theme(s1,x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_person(x1))
exists x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_lake(x3) & n_standing(x1) & of(x1,x2) & n_person(x2))