premise: twos small brown monkeys on a wall fighting with each other.
hypothesis: The two monkeys are siblings.
explanation_1: The two monkeys could be mates or of different species, not siblings. Siblings doesn't mean they will fight with each other.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & on(x1,x3) & all x5.(n_other(x5) -> with(e1,x5)) & Actor(e1,x4) & v_fight(e1) & (x3 = x4) & n_wall(x3) & n_monkey(x1) & a_brown(s2) & Theme(s2,x1) & a_small(s1) & Theme(s1,x1) & of(x1,x2) & n_two(x2))
hypothesis_logic: exists p1 x1.(n_monkey(x1) & card_eq_2(x1) & exists x2.((x1 = x2) & n_sibling(x2)))
premise_sim: exists e1 s1 s2 x1 x2 x3 x4.(v_fight(e1) & on(x1,x3) & of(x1,x2) & n_wall(x3) & n_two(x2) & n_monkey(x1) & all x5.(with(e1,x5) | -n_other(x5)) & a_topic(x1) & a_small(s1) & a_brown(s2) & Theme(s2,x1) & Theme(s1,x1) & Actor(e1,x4) & (x3 = x4))
hypothesis_sim: exists x1.(n_monkey(x1) & exists x2.(n_sibling(x2) & (x1 = x2)) & card_eq_2(x1))