premise: A man holds a baby, which is chewing on eyeglasses.
hypothesis: The grandpa is holding the baby
explanation_1: man doesn't mean grandpa
explanation_2: A man holding a baby isn't necessarily the grandpa.
explanation_3: The man holding the baby does not have to be a grandpa.
premise_logic: exists e1 e2 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_hold(e2) & on(e1,x4) & n_eyeglass(x4) & Actor(e1,x3) & v_chew(e1) & (x2 = x3) & n_baby(x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2.(n_baby(x2) & n_grandpa(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1))