premise: A man in a black leather jacket and a book in his hand speaks in a classroom.
hypothesis: A man is teaching science in a classroom.
explanation_1: doesn't mean it's a science class
explanation_2: Just because a man speaks with a book in his hand in a classroom it does not mean he is teaching science.
explanation_3: The man may not be teaching, and if he is, it might be something other than science.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(in(e1,x7) & n_classroom(x7) & Actor(e1,x1) & v_speak(e1) & subset_of(x5,x1) & in(x5,x6) & n_hand(x6) & of(x6,x2) & n_male(x2) & n_book(x5) & subset_of(x2,x1) & in(x2,x3) & n_jacket(x3) & of(x3,x4) & n_leather(x4) & a_black(s1) & Theme(s1,x3) & n_man(x2))
hypothesis_logic: exists e1 x1 x2 x3.(in(e1,x3) & n_classroom(x3) & Theme(e1,x2) & Actor(e1,x1) & v_teach(e1) & n_science(x2) & n_man(x1))
premise_sim: exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(v_speak(e1) & subset_of(x5,x1) & subset_of(x2,x1) & of(x6,x2) & of(x3,x4) & n_man(x2) & n_male(x2) & n_leather(x4) & n_jacket(x3) & n_hand(x6) & n_classroom(x7) & n_book(x5) & in(x5,x6) & in(x2,x3) & in(e1,x7) & a_black(s1) & Theme(s1,x3) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3.(v_teach(e1) & n_science(x2) & n_man(x1) & n_classroom(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1))