premise: A canoe in the distance on a lake as seen from another canoe. hypothesis: A canoe has come untied from the dock and is drifting.
neutral: We are unaware it was ever tied to be able to say that it was untied from the dock.|neutral: The canoe may not be untied and drifting.  There could be people in the canoe near the dock.|neutral: The canoe on the lake may not have come untied from the dock and begun drifting.