premise: A group of four children pose on a muddy beach, smiling and making faces.
hypothesis: Four kids pose during summer vacation.
explanation_1: Children on a beach does not imply they are on summer vacation.
explanation_2: We have no idea if they are on summer vacation, they could be anywhere and it could be any time of year.
explanation_3: You can not infer it's summer.
premise_logic: exists e1 e2 e3 s1 x1 x2 x3 x4 x5.(for(e1,e3) & Theme(e3,x5) & Actor(e3,x1) & v_make(e3) & n_face(x5) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_smile(e2) & n_face(x4) & on(e1,x3) & n_beach(x3) & a_muddy(s1) & Theme(s1,x3) & Actor(e1,x1) & v_pose(e1) & of(x1,x2) & n_child(x2) & card_eq_4(x2) & n_group(x1))
hypothesis_logic: exists e1 x1 x2 x3.(during(e1,x2) & n_vacation(x2) & of(x2,x3) & n_summer(x3) & Actor(e1,x1) & v_pose(e1) & n_kid(x1) & card_eq_4(x1))