A group of choir women wearing black and posing for a group Christmas picture.
A high school  female choir group is posing for a Christmas picture.
A group of choir women are not necessarily a high school female choir group.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(x1) & for(e2,x6) & n_picture(x6) & (x6 = x8) & ne_tim_christmas(x8) & of(x6,x7) & n_group(x7) & Actor(e2,x5) & v_pose(e2) & (x1 = x5) & a_black(s1) & Manner(e1,s1) & Actor(e1,x4) & v_wear(e1) & (x1 = x4) & of(x1,x2) & n_woman(x2) & of(x2,x3) & n_choir(x3) & n_group(x1))
exists e1 s1 x1 x2 x3 x4 x5 x6.(for(e1,x5) & n_picture(x5) & (x5 = x6) & ne_tim_christmas(x6) & Actor(e1,x1) & v_pose(e1) & n_group(x1) & of(x1,x4) & n_choir(x4) & of(x1,x3) & n_female(x3) & of(x1,x2) & n_school(x2) & a_high(s1) & Theme(s1,x1))