premise: A person on a brown horse in a prairie in front of tall mountains.
hypothesis: The rider is actually a cat hunched over on top of a horse
explanation_1: It refers it as a cat not a person. Cats do not usually ride horses.
explanation_2: a person is not a cat
explanation_3: The subject cannot be a person and cat simultaneously.
premise_logic: exists s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x2) & in(x2,x3) & in(x3,x4) & of(x4,x5) & n_mountain(x5) & a_tall(s2) & Theme(s2,x5) & n_front(x4) & n_prairie(x3) & n_horse(x2) & a_brown(s1) & Theme(s1,x2) & n_person(x1))
hypothesis_logic: exists p1 s1 x1.(n_rider(x1) & a_actually(s1) & Manner(p1,s1) & exists e1 x2 x3 x4 x5.((x1 = x2) & on(e1,x4) & of(x4,x5) & n_horse(x5) & n_top(x4) & over(e1,x3) & (x2 = x3) & v_hunch(e1) & n_cat(x2)))