context: It is certain that Julius is white. It is probably not the case that Greg is a rhino. It is highly unlikely that Emily is a cat. It is certain that if Emily is a cat, or Julius is white, then Lily is a lion. It is improbable that if Emily is a cat, and Julius is white, then John went to the garden. It is highly unlikely that if either Emily is a cat, or Julius is white, then Brian is green.
hypothesis: It is highly unlikely that lily is a lion, and Brian is green.
valid_hypothesis: It is highly unlikely that lily is a lion, and Brian is green.
invalid_hypothesis: There is a very good chance that lily is a lion, and Brian is green.
hypothesis_assertion: Lily is a lion, and Brian is green.