A group of women wearing all black uniforms play various stringed instruments.
Some women on the picture are playing instruments while swimming in a pool.
Some women can be any women and not necessarily this group of women.
exists e1 s1 s2 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_play(e1) & n_instrument(x4) & a_stringed(s2) & Theme(s2,x4) & a_various(s1) & Theme(s1,x4) & of(x1,x2) & all s3 x5.((n_uniform(x5) & a_black(s3) & Theme(s3,x5)) -> exists e2.(Theme(e2,x5) & Actor(e2,x3) & v_wear(e2))) & (x2 = x3) & n_woman(x2) & n_group(x1))
exists e2 e1 x1 x2 x3 x4.(n_picture(x2) & while(e1,e2) & in(e2,x4) & n_pool(x4) & Actor(e2,x1) & v_swim(e2) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_instrument(x3) & on(x1,x2) & n_woman(x1))