A group of women are playing their instruments in black dresses.
A group of ladies are playing music.
women are ladies and playing instruments is same as playing music
exists e1 s1 x1 x2 x3 x4.(in(e1,x4) & n_dress(x4) & a_black(s1) & Theme(s1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_instrument(x3) & of(x3,x1) & n_thing(x1) & of(x1,x2) & n_woman(x2) & n_group(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_music(x3) & of(x1,x2) & n_lady(x2) & n_group(x1))