premise: A man cooking kabobs on a barbecue in his backyard.
hypothesis: The man is cooking fish on the grill in his backyard.
explanation_1: the man is either cooking kabobs or he is cooking fish.
explanation_2: Kabob and fish aren't the same thing.
explanation_3: He refers to kabobs, not fish. He also refers to a barbecue, not a grill.
premise_logic: exists x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x4) & in(x4,x5) & n_backyard(x5) & of(x5,x1) & n_male(x1) & n_barbecue(x4) & n_kabob(x1) & of(x1,x3) & n_cooking(x3) & of(x1,x2) & n_man(x2))
hypothesis_logic: exists p1 x1 x3 x4.(n_backyard(x4) & of(x4,x3) & n_male(x3) & n_grill(x3) & n_man(x1) & exists s1 x2.((x1 = x2) & on(x2,x3) & in(x3,x4) & n_fish(x2) & a_cooking(s1) & Theme(s1,x2)))