premise: A family with young children sits down outside.
hypothesis: A father is walking the dog with his children.
explanation_1: What are they doing ... sitting down or walking the dog
explanation_2: If the family sits, they cannot also be walking the dog.
explanation_3: A family either sits down outside or they are walking the dog.
premise_logic: exists e1 s1 s2 s3 x1 x2.(a_outside(s3) & Manner(e1,s3) & a_down(s2) & Manner(e1,s2) & Actor(e1,x1) & v_sit(e1) & with(x1,x2) & n_child(x2) & a_young(s1) & Theme(s1,x2) & n_family(x1))
hypothesis_logic: exists e1 x1 x2 x3.(n_child(x3) & of(x3,x2) & n_male(x2) & n_dog(x2) & with(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_father(x1))