context: It is improbable that John went to the kitchen. Chances are slight that Julius is a rhino. It is impossible that Mary grabbed the milk.
hypothesis: There is little chance that either John went to the kitchen, or Mary grabbed the milk.
valid_hypothesis: There is little chance that either John went to the kitchen, or Mary grabbed the milk.
invalid_hypothesis: It is almost certain that either John went to the kitchen, or Mary grabbed the milk.
hypothesis_assertion: Either John went to the kitchen, or Mary grabbed the milk.