context: There is a better than even chance that Julius is a frog. There is a very good chance that John went to the kitchen. It is highly likely that Greg is yellow. It is certain that if John went to the kitchen, and Greg is yellow, then Mary dropped the milk. It is highly unlikely that if either John went to the kitchen, or Greg is yellow, then Bernhard is green. It is probable that if either Greg is yellow, or Julius is a frog, then Brian is a swan.
hypothesis: It is unlikely that either Greg is yellow, or Mary dropped the milk.
valid_hypothesis: It is unlikely that either Greg is yellow, or Mary dropped the milk.
invalid_hypothesis: It is likely that either Greg is yellow, or Mary dropped the milk.
hypothesis_assertion: Either Greg is yellow, or Mary dropped the milk.