premise: A group of women sing together while wearing matching black dresses.
hypothesis: A group of women sing on stage at the concert.
explanation_1: A concert is not the only venue that a group of women can sing.
explanation_2: Just because a group of women sing together with matching dresses it doesn't mean that they are singing at a concert.
explanation_3: Women can sing without being in a concert.
premise_logic: exists e1 e2 s1 s2 s3 x1 x2 x3.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_wear(e2) & n_dress(x3) & a_black(s3) & Theme(s3,x3) & a_matching(s2) & Theme(s2,x3) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sing(e1) & of(x1,x2) & n_woman(x2) & n_group(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(n_concert(x4) & at(e1,x4) & on(e1,x3) & n_stage(x3) & Actor(e1,x1) & v_sing(e1) & of(x1,x2) & n_woman(x2) & n_group(x1))