context: It is probable that Gertrude is a wolf. It is likely that Lily is a rhino. It is improbable that John went to the kitchen.
hypothesis: It is impossible that either Lily is a rhino, or Gertrude is a wolf.
valid_hypothesis: Chances are about even that either Lily is a rhino, or Gertrude is a wolf.
invalid_hypothesis: It is impossible that either Lily is a rhino, or Gertrude is a wolf.
hypothesis_assertion: Either Lily is a rhino, or Gertrude is a wolf.