premise: A man about to smash something with a very large sledgehammer.
hypothesis: the sledgehammer is small
explanation_1: The sledgehammer can be small or very large.
explanation_2: Large is the opposite of small.
explanation_3: The sledgehammer cannot be both small and large.
premise_logic: exists p1 s1 x1 x2.(a_topic(x1) & Topic(s1,p1) & Actor(s1,x2) & a_about(s1) & exists e1 s2 x3 x4.(Theme(e1,x3) & Actor(e1,x2) & v_smash(e1) & with(x3,x4) & n_sledgehammer(x4) & a_large(s2) & Theme(s2,x4) & r_very(x4) & n_thing(x3)) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists s1 x1.(n_sledgehammer(x1) & Theme(s1,x1) & a_small(s1))