premise: A boy on a BMX bike
hypothesis: The biker is a male youngster.
explanation_1: Since the person on the bike is a boy, he has has to be a male youngster.
premise_logic: exists x1 x2 x3.(a_topic(x1) & on(x1,x2) & n_bike(x2) & (x2 = x3) & ne_org_bmx(x3) & n_boy(x1))
hypothesis_logic: exists p1 x1.(n_biker(x1) & exists s1 x2.((x1 = x2) & n_youngster(x2) & a_male(s1) & Theme(s1,x2)))
premise_sim: exists x1 x2 x3.(on(x1,x2) & ne_org_bmx(x3) & n_boy(x1) & n_bike(x2) & a_topic(x1) & (x2 = x3))
hypothesis_sim: exists x1.(n_biker(x1) & exists s1 x2.(n_youngster(x2) & a_male(s1) & Theme(s1,x2) & (x1 = x2)))