premise: A man and a woman standing on a city street talking to each other.
hypothesis: They are boyfriend and girlfriend.
explanation_1: Just because a man and woman are talking to each other doesn't mean they are boyfriend and girlfriend.
premise_logic: exists e2 e1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & for(e1,e2) & all x6.(n_other(x6) -> to(e2,x6)) & Actor(e2,x3) & v_talk(e2) & on(e1,x4) & n_street(x4) & of(x4,x5) & n_city(x5) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_woman(x2) & subset_of(x1,s1) & n_man(x1))
hypothesis_logic: exists p1 x1.(n_thing(x1) & exists x2 x3 x4.((x1 = x2) & n_girlfriend(x4) & n_boyfriend(x3) & subset_of(x4,x2) & subset_of(x3,x2)))
premise_sim: exists e2 e1 s1 x1 x2 x3 x4 x5.(v_talk(e2) & v_stand(e1) & subset_of(x2,s1) & subset_of(x1,s1) & on(e1,x4) & of(x4,x5) & n_woman(x2) & n_street(x4) & n_man(x1) & n_city(x5) & for(e1,e2) & all x6.(to(e2,x6) | -n_other(x6)) & a_topic(s1) & Actor(e2,x3) & Actor(e1,x3) & (x2 = x3))
hypothesis_sim: exists x1.(n_thing(x1) & exists x2 x3 x4.(subset_of(x4,x2) & subset_of(x3,x2) & n_girlfriend(x4) & n_boyfriend(x3) & (x1 = x2)))