A group of people are standing in the sand.
Some people stand in the sand.
The people standing in the sand are there together in a group.
exists e1 x1 x2 x3.(n_sand(x3) & in(e1,x3) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(n_sand(x2) & in(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))