context: It is highly likely that Lily is a swan. It is certain that Gertrude is a mouse. It is probably not the case that Brian is gray. We believe that if either Brian is gray, or Gertrude is a mouse, then Julius is a lion. There is almost no chance that if Gertrude is a mouse, or Lily is a swan, then Mary left the football. It is impossible that if either Gertrude is a mouse, or Brian is gray, then Greg is green.
hypothesis: Chances are about even that either Gertrude is a mouse, or Julius is a lion.
valid_hypothesis: Chances are about even that either Gertrude is a mouse, or Julius is a lion.
invalid_hypothesis: It is almost certain that either Gertrude is a mouse, or Julius is a lion.
hypothesis_assertion: Either Gertrude is a mouse, or Julius is a lion.