context: It is unlikely that Julie is in the bedroom. It is probably the case that Lily is white. We doubt that Mary went to the kitchen.
hypothesis: It is highly unlikely that mary went to the kitchen, and Julie is in the bedroom.
valid_hypothesis: It is highly unlikely that mary went to the kitchen, and Julie is in the bedroom.
invalid_hypothesis: Chances are about even that mary went to the kitchen, and Julie is in the bedroom.
hypothesis_assertion: Mary went to the kitchen, and Julie is in the bedroom.