Cheerleaders are on the field cheering.
Some people are cheering on a field.
Cheerleaders are people.
exists p1 x1 x2 x3.(n_cheering(x2) & of(x2,x3) & n_field(x3) & on(x1,x2) & n_cheerleader(x1))
exists e1 x1 x2.(on(e1,x2) & n_field(x2) & Actor(e1,x1) & v_cheer(e1) & n_people(x1))