premise: Black man singing with microphone
hypothesis: The man is performing at a concert
explanation_1: Just because the man is singing with a microphone it doesn't mean he is performing at a concert.
explanation_2: This man may be performing for himself and not at a concert.
explanation_3: Not every man singing with a microphone is performing at a concert.
premise_logic: exists e1 x1 x2 x3 x4.(a_topic(x1) & with(e1,x4) & n_microphone(x4) & Actor(e1,x3) & v_sing(e1) & (x1 = x3) & n_man(x1) & (x1 = x2) & ne_nam_black(x2))
hypothesis_logic: exists e1 x1 x2.(n_man(x1) & at(e1,x2) & n_concert(x2) & Actor(e1,x1) & v_perform(e1))