premise: A man and a boy holding microphones.
hypothesis: A father and son are singing karaoke.
explanation_1: A man and a boy could have many different relationships or none at all, it cannot be assumed that they are father and son; nor can it be inferred from holding microphones that the two are singing karaoke.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & Theme(e1,x4) & Actor(e1,x3) & v_hold(e1) & n_microphone(x4) & (x2 = x3) & n_boy(x2) & subset_of(x1,s1) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_sing(e1) & n_karaoke(x4) & n_son(x3) & n_father(x2) & subset_of(x3,x1) & subset_of(x2,x1))
premise_sim: exists e1 s1 x1 x2 x3 x4.(v_hold(e1) & subset_of(x2,s1) & subset_of(x1,s1) & n_microphone(x4) & n_man(x1) & n_boy(x2) & a_topic(s1) & Theme(e1,x4) & Actor(e1,x3) & (x2 = x3))
hypothesis_sim: exists e1 x1 x2 x3 x4.(v_sing(e1) & subset_of(x3,x1) & subset_of(x2,x1) & n_son(x3) & n_karaoke(x4) & n_father(x2) & Theme(e1,x4) & Actor(e1,x1))