premise: Three men sit, and one man stands, on the back of a vehicle.
hypothesis: Three men stand, and one man sits, on the back of a vehicle
explanation_1: Either three men sit while one man stands, or three men stand while one man sits.
premise_logic: exists e2 e1 x1 x2 x3 x4.(n_back(x3) & on(e2,x3) & of(x3,x4) & n_vehicle(x4) & Actor(e2,x2) & v_stand(e2) & n_man(x2) & card_eq_1(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & card_eq_3(x1))
hypothesis_logic: exists e2 e1 x1 x2 x3 x4.(n_back(x3) & on(e2,x3) & of(x3,x4) & n_vehicle(x4) & Actor(e2,x2) & v_sit(e2) & n_man(x2) & card_eq_1(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & card_eq_3(x1))
premise_sim: exists e2 e1 x1 x2 x3 x4.(v_stand(e2) & v_sit(e1) & on(e2,x3) & of(x3,x4) & n_vehicle(x4) & n_man(x2) & n_man(x1) & n_back(x3) & card_eq_3(x1) & card_eq_1(x2) & Actor(e2,x2) & Actor(e1,x1))
hypothesis_sim: exists e2 e1 x1 x2 x3 x4.(v_stand(e1) & v_sit(e2) & on(e2,x3) & of(x3,x4) & n_vehicle(x4) & n_man(x2) & n_man(x1) & n_back(x3) & card_eq_3(x1) & card_eq_1(x2) & Actor(e2,x2) & Actor(e1,x1))