premise: A brown dog in running on grass.
hypothesis: A dog is sleeping at the beach
explanation_1: the dog can not be sleeping at the beach if it is running on grass
explanation_2: A dog  does not have to be brown.  Running on grass is not the same as sleeping at the beach.
explanation_3: A dog running cannot be sleeping the same time.
premise_logic: exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_grass(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(n_beach(x2) & at(e1,x2) & Actor(e1,x1) & v_sleep(e1) & n_dog(x1))