premise: A person in a blue plaid shirt is writing on a chalkboard.
hypothesis: The person is writing on the chalk board.
explanation_1: Both sentences say that the person is writing on the chalkboard
explanation_2: person in a blue plaid shirt is inferred as  person.
explanation_3: The chalkboard is for writing.
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 x3.(n_board(x2) & of(x2,x3) & n_chalk(x3) & n_person(x1) & on(e1,x2) & Actor(e1,x1) & v_write(e1))