context: It is unlikely that Julius is a frog. It is probably the case that Sandra left the apple. It is almost certain that Bernhard is green. There is a better than even chance that if Bernhard is green, or Julius is a frog, then Greg is a swan. It is certain that if either Bernhard is green, or Julius is a frog, then John went to the kitchen. Chances are about even that if either Bernhard is green, or Sandra left the apple, then Mary put down the milk.
hypothesis: It is highly unlikely that john went to the kitchen, or Mary put down the milk.
valid_hypothesis: There is a very good chance that john went to the kitchen, or Mary put down the milk.
invalid_hypothesis: It is highly unlikely that john went to the kitchen, or Mary put down the milk.
hypothesis_assertion: John went to the kitchen, or Mary put down the milk.