context: It is unlikely that Brian is green. It is improbable that Julius is a rhino. It is certain that Emily is a sheep.
hypothesis: There is almost no chance that either Emily is a sheep, or Brian is green.
valid_hypothesis: There is a very good chance that either Emily is a sheep, or Brian is green.
invalid_hypothesis: There is almost no chance that either Emily is a sheep, or Brian is green.
hypothesis_assertion: Either Emily is a sheep, or Brian is green.