context: Chances are slight that Bernhard is green. There is a very good chance that Julius is a rhino. There is a very good chance that John left the apple. There is a very good chance that if Bernhard is green, or John left the apple, then Winona is a cat. It is probably not the case that if Bernhard is green, or John left the apple, then Greg is gray. It is improbable that if either Bernhard is green, or Julius is a rhino, then Lily is a frog.
hypothesis: Chances are about even that lily is a frog, and Winona is a cat.
valid_hypothesis: It is highly unlikely that lily is a frog, and Winona is a cat.
invalid_hypothesis: Chances are about even that lily is a frog, and Winona is a cat.
hypothesis_assertion: Lily is a frog, and Winona is a cat.