premise: Two men both with dark hair wearing striped vests.
hypothesis: Two brothers are posing at a wedding.
explanation_1: Just because two men are wearing vests doesn't mean they are brothers.  They also could be different types of vests, not just dress vests at a wedding. People can also wear a vest without posing.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_vest(x4) & a_striped(s2) & Theme(s2,x4) & (x1 = x3) & n_both(x1) & with(x1,x2) & n_hair(x2) & a_dark(s1) & Theme(s1,x2) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 x1 x2.(at(e1,x2) & n_wedding(x2) & Actor(e1,x1) & v_pose(e1) & n_brother(x1) & card_eq_2(x1))
premise_sim: exists e1 s1 s2 x1 x2 x3 x4.(with(x1,x2) & v_wear(e1) & n_vest(x4) & n_man(x1) & n_hair(x2) & n_both(x1) & card_eq_2(x1) & a_topic(x1) & a_striped(s2) & a_dark(s1) & Theme(s2,x4) & Theme(s1,x2) & Theme(e1,x4) & Actor(e1,x3) & (x1 = x3))
hypothesis_sim: exists e1 x1 x2.(v_pose(e1) & n_wedding(x2) & n_brother(x1) & card_eq_2(x1) & at(e1,x2) & Actor(e1,x1))