context: There is a better than even chance that Jessica is a mouse. It is certain that Julius is a rhino. It is probably the case that Fred dropped the milk.
hypothesis: It is almost certain that fred dropped the milk, and Jessica is a mouse.
valid_hypothesis: Chances are about even that fred dropped the milk, and Jessica is a mouse.
invalid_hypothesis: It is almost certain that fred dropped the milk, and Jessica is a mouse.
hypothesis_assertion: Fred dropped the milk, and Jessica is a mouse.