context: It is impossible that Emily is a sheep. There is a better than even chance that Lily is gray. It is unlikely that Brian is a rhino. It is probably not the case that if Lily is gray, or Brian is a rhino, then Winona is a cat. It is highly likely that if Emily is a sheep, and Lily is gray, then Sandra left the milk. There is a better than even chance that if either Emily is a sheep, or Lily is gray, then Greg is a frog.
hypothesis: It is certain that greg is a frog, and Winona is a cat.
valid_hypothesis: It is improbable that greg is a frog, and Winona is a cat.
invalid_hypothesis: It is certain that greg is a frog, and Winona is a cat.
hypothesis_assertion: Greg is a frog, and Winona is a cat.