A crowd of young people sit on the grass.
The young people are on the field.
On the grass, many young people are sitting
exists e1 s1 x1 x2 x3.(n_grass(x3) & on(e1,x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & a_young(s1) & Theme(s1,x2) & n_crowd(x1))
exists p1 s1 x1 x2.(n_field(x2) & n_people(x1) & a_young(s1) & Theme(s1,x1) & on(x1,x2))