premise: Two men surf on a small wave with a city in the background.
hypothesis: There are people outside.
explanation_1: Men are people. If people are on a wave, surfing, with a city in the background, then they are outside.
premise_logic: exists e1 s1 x1 x2 x3 x4.(n_background(x4) & on(e1,x2) & in(x2,x4) & with(x2,x3) & n_city(x3) & n_wave(x2) & a_small(s1) & Theme(s1,x2) & Actor(e1,x1) & v_surf(e1) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 s1 x1.(a_outside(s1) & Manner(p1,s1) & exists x2.((x1 = x2) & n_people(x2)))
premise_sim: exists e1 s1 x1 x2 x3 x4.(with(x2,x3) & v_surf(e1) & on(e1,x2) & n_wave(x2) & n_man(x1) & n_city(x3) & n_background(x4) & in(x2,x4) & card_eq_2(x1) & a_small(s1) & Theme(s1,x2) & Actor(e1,x1))
hypothesis_sim: exists p1 s1 x1.(exists x2.(n_people(x2) & (x1 = x2)) & a_outside(s1) & Manner(p1,s1))