context: It is improbable that Bernhard is gray. It is highly unlikely that Sumit is tired. There is a better than even chance that Julius is a swan. It is probably not the case that if Bernhard is gray, or Julius is a swan, then Lily is a rhino. It is improbable that if Bernhard is gray, or Sumit is tired, then John took the football. We believe that if Sumit is tired, or Bernhard is gray, then Sandra dropped the milk.
hypothesis: There is almost no chance that julius is a swan, and Sumit is tired.
valid_hypothesis: There is almost no chance that julius is a swan, and Sumit is tired.
invalid_hypothesis: Chances are about even that julius is a swan, and Sumit is tired.
hypothesis_assertion: Julius is a swan, and Sumit is tired.