premise: The person in black T-shirt is sitting.
hypothesis: The man is attending a concert.
explanation_1: A sitting person in a black t-shirt could be anywhere, not just a concert.
explanation_2: A black T-shirt does not mean that the man is attending a concert.
explanation_3: Sitting does not mean attending a concert.
premise_logic: exists e1 s1 x1 x2.(n_person(x1) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_t-shirt(x2) & a_black(s1) & Theme(s1,x2))
hypothesis_logic: exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_attend(e1) & n_concert(x2))