premise: A greyhound jumps over a chain.
hypothesis: A dog ran away from the racetrack.
explanation_1: There is no mention of a racetrack.
explanation_2: Just because a dog jumps over a chain doesn't mean it ran away from the racetrack.
explanation_3: The greyhound may not be running away from a racetrack when he jumps over the chain.
premise_logic: exists s1 x1 x2.(a_topic(x1) & over(x1,x2) & n_chain(x2) & n_jump(x1) & a_greyhound(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(n_racetrack(x2) & from(e1,x2) & r_away(e1) & Actor(e1,x1) & v_run(e1) & n_dog(x1))