premise: Group of people dance with smiles at their faces.
hypothesis: Some men are happy at a concert.
explanation_1: Not everyone smiles when he is happy; not everyone is happy when he smiles. Dancing occurs everywhere, not just at a concert.
premise_logic: exists s1 x1 x2 x3 x4.(ne_org_group(s1) & a_topic(s1) & of(s1,x1) & with(x1,x3) & at(x3,x4) & n_face(x4) & of(x4,x1) & n_thing(x1) & n_smile(x3) & Time(x1,x2) & n_dance(x2) & n_people(x1))
hypothesis_logic: exists s1 x1 x2.(at(s1,x2) & n_concert(x2) & Theme(s1,x1) & a_happy(s1) & n_man(x1))
premise_sim: exists s1 x1 x2 x3 x4.(with(x1,x3) & of(x4,x1) & of(s1,x1) & ne_org_group(s1) & n_thing(x1) & n_smile(x3) & n_people(x1) & n_face(x4) & n_dance(x2) & at(x3,x4) & a_topic(s1) & Time(x1,x2))
hypothesis_sim: exists s1 x1 x2.(n_man(x1) & n_concert(x2) & at(s1,x2) & a_happy(s1) & Theme(s1,x1))