premise: Two older males sitting together on a river boat tour.
hypothesis: Two males sitting together on a boat
explanation_1: The males are sitting on the boat
explanation_2: Two men are sitting together on a boat means that they are on a boat tour.
explanation_3: In order to take a boat tour, the two males must be on a boat.
premise_logic: exists e1 p1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x3) & n_tour(x3) & of(x3,x5) & n_boat(x5) & of(x3,x4) & n_river(x4) & exists s2.(Theme(s2,x2) & a_together(s2)) & Topic(e1,p1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_male(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1) & card_eq_2(x1))
hypothesis_logic: exists e1 p1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_boat(x3) & exists s1.(Theme(s1,x2) & a_together(s1)) & Topic(e1,p1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_male(x1) & card_eq_2(x1))