if something is zero shade at zero space and another shade at another time, then that something wetland shade
zero_dimensional_thing is not spatial_thing. low_lying_wetland is sparse_canopy_closure. when_car is parked_speed_zero. window_shade is not window_blind. shadow is not shade. shade is not color. bog is sparse_canopy_closure. space has not zero_pressure shade is not window_covering. when_car is not parked_speed_zero.