Young children play with gigantic bubbles in a green room.
Brothers and sisters playing.
The children are not necessarily brothers and sisters.
exists e1 s1 s2 x1 x2 x3 x4.(in(e1,x4) & n_room(x4) & a_green(s2) & Theme(s2,x4) & with(e1,x3) & n_bubble(x3) & a_gigantic(s1) & Theme(s1,x3) & Actor(e1,x1) & v_play(e1) & n_child(x1) & (x1 = x2) & ne_nam_young(x2))
exists e1 s1 x1 x2 x3.(ne_org_brothers(x1) & a_topic(s1) & subset_of(x2,s1) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_sister(x2) & subset_of(x1,s1))