premise: A man is singing into a microphone.
hypothesis: A man is performing on stage.
explanation_1: A man who is singing on a microphone is not necessarily on a stage.
premise_logic: exists e1 x1 x2.(into(e1,x2) & n_microphone(x2) & Actor(e1,x1) & v_sing(e1) & n_man(x1))
hypothesis_logic: exists e1 x1 x2.(on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_perform(e1) & n_man(x1))
premise_sim: exists e1 x1 x2.(v_sing(e1) & n_microphone(x2) & n_man(x1) & into(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_perform(e1) & on(e1,x2) & n_stage(x2) & n_man(x1) & Actor(e1,x1))