context: It is highly likely that Bernhard is a rhino. It is probably not the case that Brian is a frog. It is probable that Julius is white. Chances are about even that if Bernhard is a rhino, and Brian is a frog, then Greg is a lion. Chances are slight that if either Bernhard is a rhino, or Julius is white, then Bill is in the kitchen. There is a very good chance that if Brian is a frog, and Bernhard is a rhino, then Mary picked up the apple.
hypothesis: There is almost no chance that either Julius is white, or Bill is in the kitchen.
valid_hypothesis: It is probable that either Julius is white, or Bill is in the kitchen.
invalid_hypothesis: There is almost no chance that either Julius is white, or Bill is in the kitchen.
hypothesis_assertion: Either Julius is white, or Bill is in the kitchen.