context: It is highly unlikely that Greg is a swan. There is little chance that Sandra grabbed the milk. It is highly likely that Fred went to the kitchen.
hypothesis: It is highly likely that sandra grabbed the milk, or Fred went to the kitchen.
valid_hypothesis: It is highly likely that sandra grabbed the milk, or Fred went to the kitchen.
invalid_hypothesis: It is improbable that sandra grabbed the milk, or Fred went to the kitchen.
hypothesis_assertion: Sandra grabbed the milk, or Fred went to the kitchen.