premise: A motorcycle races.
hypothesis: The bike is not moving.
explanation_1: When a bike races, it is moving.
explanation_2: A motorcycle races which means it is in motion and can not be not moving.
explanation_3: Races means moving quickly, whereas not moving means you are motionless and still.
premise_logic: exists x1 x2.(a_topic(x1) & n_race(x1) & of(x1,x2) & n_motorcycle(x2))
hypothesis_logic: exists x1.(n_bike(x1) & -exists e1.(Actor(e1,x1) & v_move(e1)))