A girl in a red dress plays a red cello.
A girl playing a red cello is wearing a red dress.
"A girl playing a red cello is wearing a red dress" illustrates that the girl is also wearing a red dress.
exists e1 s1 s2 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_cello(x3) & a_red(s2) & Theme(s2,x3) & in(x1,x2) & n_dress(x2) & a_red(s1) & Theme(s1,x2) & n_girl(x1))
exists e2 e1 s1 s2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_wear(e2) & n_dress(x4) & a_red(s2) & Theme(s2,x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_cello(x3) & a_red(s1) & Theme(s1,x3) & (x1 = x2) & n_girl(x1))