context: It is certain that Bernhard is a swan. There is little chance that Julie is in the bedroom. It is likely that Bill went to the kitchen.
hypothesis: It is highly unlikely that bill went to the kitchen, and Julie is in the bedroom.
valid_hypothesis: It is highly unlikely that bill went to the kitchen, and Julie is in the bedroom.
invalid_hypothesis: It is highly likely that bill went to the kitchen, and Julie is in the bedroom.
hypothesis_assertion: Bill went to the kitchen, and Julie is in the bedroom.