premise: A man in a black shirt is at the microphone.
hypothesis: A man is singing.
explanation_1: People who are at a microphone could be doing many different things, such as giving a speech or hosting an event, so it doesn't necessarily imply that the man is singing.
premise_logic: exists p1 s1 x1 x2 x3.(n_microphone(x3) & at(x1,x3) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_sing(e1) & n_man(x1))
premise_sim: exists s1 x1 x2 x3.(n_shirt(x2) & n_microphone(x3) & n_man(x1) & in(x1,x2) & at(x1,x3) & a_black(s1) & Theme(s1,x2))
hypothesis_sim: exists e1 x1.(v_sing(e1) & n_man(x1) & Actor(e1,x1))