context: Chances are slight that Bill is in the school. It is probable that Lily is white. It is highly likely that Jessica is a sheep. Chances are slight that if Bill is in the school, and Jessica is a sheep, then Brian is white. It is unlikely that if Bill is in the school, or Lily is white, then John went to the garden. It is improbable that if either Jessica is a sheep, or Bill is in the school, then Winona is a mouse.
hypothesis: It is improbable that jessica is a sheep, and Bill is in the school.
valid_hypothesis: It is improbable that jessica is a sheep, and Bill is in the school.
invalid_hypothesis: It is highly likely that jessica is a sheep, and Bill is in the school.
hypothesis_assertion: Jessica is a sheep, and Bill is in the school.