Soap bubbles are blown in a square where people chase them
Children are blowing bubbles.
Not only children can be blowing bubbles.
exists e1 p1 x1 x2 x3.(in(e1,x3) & exists e2 x4.(Theme(e2,x1) & Actor(e2,x4) & v_chase(e2) & n_people(x4)) & n_thing(x1) & where(x3,p1) & n_square(x3) & Theme(e1,x1) & v_blow(e1) & n_bubble(x1) & (x1 = x2) & ne_nam_soap(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_blow(e1) & n_bubble(x2) & n_child(x1))