premise: Several horsemen are riding past each other carrying flags.
hypothesis: The horses are in their stables.
explanation_1: Horse in stables cannot be riding.
explanation_2: Horses are not horsemen.  If horsemen are riding past horses are not in their stables.
explanation_3: The horses cannot be riding past each other and in their stables.
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 p1 x1 x2.(n_stable(x2) & of(x2,x1) & n_thing(x1) & n_horse(x1) & in(x1,x2))