premise: Two men in workers' gear and colorful hard hats standing on board what appears to be a large ship, next to some very large machinery.
hypothesis: two men in workers gear are on a large ship with machinery
explanation_1: There are two men in workers' gear on board a large ship with machinery.
explanation_2: If the men are on board and they are next to machinery, it is logical the machinery is also on the ship.
explanation_3: On board a large ship is a paraphrase of on a large ship.
premise_logic: exists e2 e1 p1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & on(e1,x6) & Topic(e2,p1) & Actor(e2,x7) & v_appear(e2) & exists p2 s3 x8.(to(p2,x8) & n_machinery(x8) & a_large(s3) & Theme(s3,x8) & r_very(x8) & r_next(p2) & exists s4 x9.((x7 = x9) & n_ship(x9) & a_large(s4) & Theme(s4,x9))) & (x6 = x7) & n_board(x6) & Actor(e1,x5) & v_stand(e1) & (x1 = x5) & in(x1,x3) & n_hat(x3) & a_hard(s2) & Theme(s2,x3) & a_colorful(s1) & Theme(s1,x3) & of(x3,x4) & n_gear(x4) & of(x3,x2) & n_worker(x2) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 x2 x3.(exists s1 x4 x5.(on(x1,x4) & with(x4,x5) & n_machinery(x5) & n_ship(x4) & a_large(s1) & Theme(s1,x4)) & in(x1,x2) & n_gear(x2) & of(x2,x3) & n_worker(x3) & n_man(x1) & card_eq_2(x1))