premise: Several horsemen are riding past each other carrying flags.
hypothesis: The men are riding horses.
explanation_1: Horsemen are men riding horses.
explanation_2: The word 'horsemen' implies that there are men riding horses.
explanation_3: Several horsemen riding past means there are men riding horses.
premise_logic: exists e3 e1 s1 x1 x3.(n_flag(x3) & Actor(e3,x3) & v_carry(e3) & all x2 e2.((-(x2 = x3) & n_flag(x2) & Actor(e2,x2) & v_carry(e2)) -> past(e1,x2)) & Actor(e1,x1) & v_ride(e1) & n_horseman(x1) & a_several(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2))
premise_sim: exists e3 e1 s1 x1 x3.(v_ride(e1) & v_carry(e3) & n_horseman(x1) & n_flag(x3) & all x2 e2.(past(e1,x2) | -v_carry(e2) | -n_flag(x2) | -Actor(e2,x2) | (x2 = x3)) & a_several(s1) & Theme(s1,x1) & Actor(e3,x3) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_ride(e1) & n_man(x1) & n_horse(x2) & Theme(e1,x2) & Actor(e1,x1))