premise: A man and a woman is walking with a dog across a beach
hypothesis: There is a couple.
explanation_1: The man and a woman might not be a couple.
explanation_2: The man and woman are not necessarily a couple.
explanation_3: A man and woman together are not necessarily a couple, for example they could just be friends.
premise_logic: exists e1 x1 x2 x3 x4 x5.(across(e1,x5) & n_beach(x5) & with(e1,x4) & n_dog(x4) & Actor(e1,x1) & v_walk(e1) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
hypothesis_logic: exists p1 x1 x2.((x1 = x2) & n_couple(x2))