premise: Man in a blue shirt practicing karate.
hypothesis: There is someone doing martial arts.
explanation_1: A man is someone.  Karate is a martial arts.
explanation_2: A man is someone and karate is a type of martial arts.
explanation_3: "Someone doing martial arts" is a rephrasing of "a man practicing karate".
premise_logic: exists s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & n_karate(x2) & of(x2,x4) & n_practicing(x4) & of(x2,x3) & n_shirt(x3) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists p1 x1 e1 s1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & n_art(x4) & a_martial(s1) & Theme(s1,x4) & (x2 = x3) & n_person(x2))
premise_sim: exists s1 x1 x2 x3 x4.(of(x2,x4) & of(x2,x3) & n_shirt(x3) & n_practicing(x4) & n_man(x1) & n_karate(x2) & in(x1,x2) & a_topic(x1) & a_blue(s1) & Theme(s1,x2))
hypothesis_sim: exists x1 e1 s1 x2 x3 x4.(v_do(e1) & n_person(x2) & n_art(x4) & a_martial(s1) & Theme(s1,x4) & Theme(e1,x4) & Actor(e1,x3) & (x2 = x3) & (x1 = x2))