premise: Two young boys practicing the art of karate.
hypothesis: The boys are fighting each other
explanation_1: sentence 1 states 2 young friends are practicing karate but does not say they are fighting.
premise_logic: exists e1 s1 x1 x2 x3 x4.(n_art(x3) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_practice(e1) & of(x3,x4) & n_karate(x4) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
hypothesis_logic: exists x1.(n_boy(x1) & all x2.(n_other(x2) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_fight(e1))))
premise_sim: exists e1 s1 x1 x2 x3 x4.(v_practice(e1) & of(x3,x4) & n_karate(x4) & n_boy(x1) & n_art(x3) & card_eq_2(x1) & a_young(s1) & a_topic(x1) & Theme(s1,x1) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists x1.(n_boy(x1) & all x2.(exists e1.(v_fight(e1) & Theme(e1,x2) & Actor(e1,x1)) | -n_other(x2)))