premise: Two dogs swimming.
hypothesis: Two dog are sitting in the dirt.
explanation_1: The dogs can't be swimming while sitting.
explanation_2: Dogs cannot be sitting and swimming at the same time.  Also dog indicates singular and dogs indicate there is more than one dog.
explanation_3: If someone is sitting in the dirt, that is a different activity than swimming.
premise_logic: exists s1 x1 x2.(n_swimming(x1) & a_.(s1) & Theme(s1,x1) & of(x1,x2) & n_dog(x2) & card_eq_2(x1) & a_topic(x1))
hypothesis_logic: exists e1 x1 x2.(n_dirt(x2) & in(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_dog(x1) & card_eq_2(x1))