premise: two young children on a skateboard going across a sidewalk
hypothesis: Two young children are going to the park.
explanation_1: The children on the skateboard could be heading to any one of a hundred possible destinations and there's no way to say that they are going to the park as opposed to anywhere else.
explanation_2: Not all children on a skateboard are going to the park.
explanation_3: We don't know where the children are going on the skateboard, nothing implies that they are going tot he park.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & across(e1,x4) & n_sidewalk(x4) & Actor(e1,x3) & v_go(e1) & (x2 = x3) & n_skateboard(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
hypothesis_logic: exists e1 s1 x1 x2.(n_park(x2) & to(e1,x2) & Actor(e1,x1) & v_go(e1) & n_child(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))