premise: Two men talk on the street.
hypothesis: Two men are smiling and talking as cars and trucks whiz by.
explanation_1: Two men talking does not not mean both men are happy and/or smiling.  Being on a street does not mean cars and trucks whiz by.
premise_logic: exists e1 x1 x2.(n_street(x2) & on(e1,x2) & Actor(e1,x1) & v_talk(e1) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists e3 e1 e2 s1 x1 x2 x3 x4.(a_by(s1) & Manner(e3,s1) & Actor(e3,x4) & v_whiz(e3) & n_truck(x4) & as(e2,x3) & n_car(x3) & Actor(e2,x2) & v_talk(e2) & n_man(x2) & card_eq_2(x2) & Actor(e1,x1) & v_smile(e1) & n_man(x1) & card_eq_2(x1))
premise_sim: exists e1 x1 x2.(v_talk(e1) & on(e1,x2) & n_street(x2) & n_man(x1) & card_eq_2(x1) & Actor(e1,x1))
hypothesis_sim: exists e3 e1 e2 s1 x1 x2 x3 x4.(v_whiz(e3) & v_talk(e2) & v_smile(e1) & n_truck(x4) & n_man(x2) & n_man(x1) & n_car(x3) & card_eq_2(x2) & card_eq_2(x1) & as(e2,x3) & a_by(s1) & Manner(e3,s1) & Actor(e3,x4) & Actor(e2,x2) & Actor(e1,x1))