context: It is certain that Julius is white. Chances are slight that John discarded the milk. It is highly unlikely that Greg is gray. It is unlikely that if either Greg is gray, or John discarded the milk, then Mary left the apple. It is impossible that if either Julius is white, or John discarded the milk, then Bill is in the school. Chances are about even that if Greg is gray, or Julius is white, then Lily is a rhino.
hypothesis: Chances are slight that either John discarded the milk, or Julius is white.
valid_hypothesis: It is highly likely that either John discarded the milk, or Julius is white.
invalid_hypothesis: Chances are slight that either John discarded the milk, or Julius is white.
hypothesis_assertion: Either John discarded the milk, or Julius is white.