context: It is probable that Mary dropped the milk. It is improbable that Julius is a rhino. There is a very good chance that Emily is a mouse. It is highly unlikely that if either Julius is a rhino, or Emily is a mouse, then Bill went to the kitchen. We doubt that if either Julius is a rhino, or Emily is a mouse, then John is in the bedroom. It is likely that if Mary dropped the milk, or Julius is a rhino, then Lily is yellow.
hypothesis: It is probable that either Julius is a rhino, or Bill went to the kitchen.
valid_hypothesis: Chances are slight that either Julius is a rhino, or Bill went to the kitchen.
invalid_hypothesis: It is probable that either Julius is a rhino, or Bill went to the kitchen.
hypothesis_assertion: Either Julius is a rhino, or Bill went to the kitchen.