context: It is probably not the case that Daniel left the milk. It is unlikely that Julius is a rhino. It is improbable that Mary moved to the office. Chances are about even that if Julius is a rhino, or Daniel left the milk, then Lily is a swan. It is almost certain that if Mary moved to the office, or Julius is a rhino, then John went to the kitchen. It is unlikely that if either Julius is a rhino, or Daniel left the milk, then Brian is a lion.
hypothesis: It is probably not the case that either Julius is a rhino, or Mary moved to the office.
valid_hypothesis: It is probably not the case that either Julius is a rhino, or Mary moved to the office.
invalid_hypothesis: It is likely that either Julius is a rhino, or Mary moved to the office.
hypothesis_assertion: Either Julius is a rhino, or Mary moved to the office.