premise: Two children, standing among grass, are putting their arms out and are smiling.
hypothesis: Two kids smiling.
explanation_1: Children are kids.
explanation_2: Kids is a synonym for children. Also, 'Two kids smiling' is a much simpler rephrasing of 'Two children, standing among grass....and are smiling'.
explanation_3: Two children and two kids are equivalent as part of their description smiling.
premise_logic: exists e2 e4 e3 e1 s1 x1 x2 x3 x4.(for(e3,e4) & among(e4,x4) & n_grass(x4) & Actor(e4,x1) & v_stand(e4) & Actor(e3,x1) & v_smile(e3) & for(e1,e2) & among(e2,x3) & n_grass(x3) & Actor(e2,x1) & v_stand(e2) & a_out(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_put(e1) & n_arm(x2) & of(x2,x1) & n_thing(x1) & n_child(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_smile(e1) & (x1 = x2) & n_kid(x1) & card_eq_2(x1))
premise_sim: exists e2 e4 e3 e1 s1 x1 x2 x3 x4.(v_stand(e4) & v_stand(e2) & v_smile(e3) & v_put(e1) & of(x2,x1) & n_thing(x1) & n_grass(x4) & n_grass(x3) & n_child(x1) & n_arm(x2) & for(e3,e4) & for(e1,e2) & card_eq_2(x1) & among(e4,x4) & among(e2,x3) & a_out(s1) & Theme(e1,x2) & Manner(e1,s1) & Actor(e4,x1) & Actor(e3,x1) & Actor(e2,x1) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_smile(e1) & n_kid(x1) & card_eq_2(x1) & a_topic(x1) & Actor(e1,x2) & (x1 = x2))