context: We doubt that John went to the kitchen. There is a very good chance that Mary is in the school. There is almost no chance that Bill dropped the milk. It is probably not the case that if Mary is in the school, and John went to the kitchen, then Julius is a rhino. It is certain that if either John went to the kitchen, or Mary is in the school, then Bernhard is gray. It is probably the case that if either Bill dropped the milk, or Mary is in the school, then Winona is a cat.
hypothesis: We doubt that either John went to the kitchen, or Bill dropped the milk.
valid_hypothesis: We doubt that either John went to the kitchen, or Bill dropped the milk.
invalid_hypothesis: It is almost certain that either John went to the kitchen, or Bill dropped the milk.
hypothesis_assertion: Either John went to the kitchen, or Bill dropped the milk.