premise: two dogs fighting over a pink and red toy
hypothesis: The dogs are in the backyard.
explanation_1: dogs fighting  doesn't always mean  dogs are in the backyard
explanation_2: Dogs fight in places other than just the backyard.
explanation_3: Two dogs could be fighting anywhere not only in the backyard
premise_logic: exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & over(e1,x3) & n_toy(x3) & a_red(s2) & Theme(s2,x3) & a_pink(s1) & Theme(s1,x3) & Actor(e1,x2) & v_fight(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 x2.(n_backyard(x2) & n_dog(x1) & in(x1,x2))