A group of people are standing in the sand.
People are talking while standing on a beach.
Sand is in other places besides the beach.
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 e2 e1 x1 x2.(while(e1,e2) & on(e2,x2) & n_beach(x2) & Actor(e2,x1) & v_stand(e2) & Actor(e1,x1) & v_talk(e1) & n_people(x1))