premise: A woman with a bag is sitting amongst three people who are reading books.
hypothesis: Nobody is reading a book.
explanation_1: If three people are reading books, those aren't "nobody".
explanation_2: If nobody is reading a book, then there cannot be three people reading books.
explanation_3: People reading books is not the same as nobody reading a book.
premise_logic: exists e2 e1 x1 x2 x3 x4 x5.(amongst(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_read(e2) & n_book(x5) & (x3 = x4) & n_people(x3) & card_eq_3(x3) & Actor(e1,x1) & v_sit(e1) & with(x1,x2) & n_bag(x2) & n_woman(x1))
hypothesis_logic: -exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_book(x2) & n_person(x1))