A woman plays the cello while looking on.
A woman creates sound.
plays the cello  almost the same as creates sound.
exists e2 e1 s1 x1 x2.(n_cello(x2) & while(e1,e2) & a_on(s1) & Manner(e2,s1) & Actor(e2,x1) & v_look(e2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_woman(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_create(e1) & n_sound(x2) & n_woman(x1))