premise: A greyhound jumps over a chain.
hypothesis: A dog is sleeping under a chain.
explanation_1: If the greyhound jumps, he is clearly not sleeping
explanation_2: A dog cannot sleep under a chain if the dog jumps over the chain.
explanation_3: The dog can't be sleeping if he jumps.
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.(under(e1,x2) & n_chain(x2) & Actor(e1,x1) & v_sleep(e1) & n_dog(x1))