Big multicolored balloons.
The balloons are multicolored.
Both subjects are multicolored balloons.
exists e1 x1 x2.(ne_nam_big(x1) & Theme(e1,x2) & Actor(e1,x1) & v_multicolor(e1) & n_balloon(x2))
exists e1 x1.(n_balloon(x1) & Theme(e1,x1) & v_multicolor(e1))