context: We believe that Lily is yellow. It is likely that Gertrude is a sheep. It is unlikely that John dropped the apple. It is certain that if either Lily is yellow, or John dropped the apple, then Greg is gray. It is probably not the case that if Gertrude is a sheep, or John dropped the apple, then Bernhard is a frog. It is highly likely that if Gertrude is a sheep, or John dropped the apple, then Mary went to the bedroom.
hypothesis: It is improbable that greg is gray, or Gertrude is a sheep.
valid_hypothesis: It is highly likely that greg is gray, or Gertrude is a sheep.
invalid_hypothesis: It is improbable that greg is gray, or Gertrude is a sheep.
hypothesis_assertion: Greg is gray, or Gertrude is a sheep.