premise: Two men fly fishing while standing in a river.
hypothesis: Two men are in a boat.
explanation_1: One does not stand in a river while also being in a boat.
premise_logic: exists e1 e2 x1 x2 x3.(while(e1,e2) & in(e2,x3) & n_river(x3) & Actor(e2,x1) & v_stand(e2) & Time(e1,x2) & n_fishing(x2) & Actor(e1,x1) & v_fly(e1) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1.(exists x2.(in(x1,x2) & n_boat(x2)) & n_man(x1) & card_eq_2(x1))
premise_sim: exists e1 e2 x1 x2 x3.(while(e1,e2) & v_stand(e2) & v_fly(e1) & n_river(x3) & n_man(x1) & n_fishing(x2) & in(e2,x3) & card_eq_2(x1) & Time(e1,x2) & Actor(e2,x1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_man(x1) & exists x2.(n_boat(x2) & in(x1,x2)) & card_eq_2(x1))