context: It is likely that Greg is yellow. Chances are about even that Julius is green. It is likely that Emily is a mouse. There is little chance that if Julius is green, and Greg is yellow, then Gertrude is a wolf. It is probably the case that if Emily is a mouse, or Greg is yellow, then John went to the garden. It is unlikely that if Julius is green, or Emily is a mouse, then Mary got the milk.
hypothesis: There is a better than even chance that either Emily is a mouse, or Mary got the milk.
valid_hypothesis: There is a better than even chance that either Emily is a mouse, or Mary got the milk.
invalid_hypothesis: It is impossible that either Emily is a mouse, or Mary got the milk.
hypothesis_assertion: Either Emily is a mouse, or Mary got the milk.