premise: a dog chases another dog.
hypothesis: Two dogs are running after a cat.
explanation_1: are there two dogs or one? what's being pursued at dog or cat?
explanation_2: Dog cannot chase a dog and a cat at the same time.
explanation_3: “a” dog means one . “Two” dogs mean more than one
premise_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & n_dog(x2) & -(x2 = x1) & n_dog(x1) & n_dog(x1))
hypothesis_logic: exists e1 x1 x2.(after(e1,x2) & n_cat(x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))