premise: A person in a blue plaid shirt is writing on a chalkboard.
hypothesis: The person is reading a book.
explanation_1: The person cannot be reading and writing at the same time.
explanation_2: You can't be writing on a chalkboard and reading a book at the same time.
explanation_3: A person can not be writing on a chalkboard and be reading a book simultaneously.
premise_logic: exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_chalkboard(x4) & Actor(e1,x1) & v_write(e1) & in(x1,x2) & n_shirt(x2) & of(x2,x3) & n_plaid(x3) & a_blue(s1) & Theme(s1,x2) & n_person(x1))
hypothesis_logic: exists e1 x1 x2.(n_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_book(x2))