premise: A guy is singing into a microphone.
hypothesis: A man is not using a microphone.
explanation_1: A man singing into a microphone is using it, he is not not using it.
premise_logic: exists e1 x1 x2.(into(e1,x2) & n_microphone(x2) & Actor(e1,x1) & v_sing(e1) & n_guy(x1))
hypothesis_logic: exists x1.(-exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_microphone(x2)) & n_man(x1))
premise_sim: exists e1 x1 x2.(v_sing(e1) & n_microphone(x2) & n_guy(x1) & into(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_man(x1) & all e1 x2.(-v_use(e1) | -n_microphone(x2) | -Theme(e1,x2) | -Actor(e1,x1)))