premise: Two men are shirtless on the beach on a beautiful day.
hypothesis: Two men are shirtless.
explanation_1: Two men on the beach on a beautiful day doesn't imply that the two men are shirtless.
explanation_2: as they are in beach it not necessary that they are shirtless.
explanation_3: Two men may be shirtless, by omitting where and why they the statement is too ambiguous of course there are two men somewhere.
premise_logic: exists s1 s2 x1 x2 x3.(n_beach(x2) & on(s1,x3) & n_day(x3) & a_beautiful(s2) & Theme(s2,x3) & on(s1,x2) & Theme(s1,x1) & a_shirtless(s1) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists s1 x1.(Theme(s1,x1) & a_shirtless(s1) & n_man(x1) & card_eq_2(x1))
premise_sim: exists s1 s2 x1 x2 x3.(on(s1,x3) & on(s1,x2) & n_man(x1) & n_day(x3) & n_beach(x2) & card_eq_2(x1) & a_shirtless(s1) & a_beautiful(s2) & Theme(s2,x3) & Theme(s1,x1))
hypothesis_sim: exists s1 x1.(n_man(x1) & card_eq_2(x1) & a_shirtless(s1) & Theme(s1,x1))