context: Chances are slight that Greg is white. Chances are about even that John dropped the apple. It is likely that Julius is a frog. It is improbable that if John dropped the apple, or Julius is a frog, then Lily is a lion. It is certain that if John dropped the apple, and Julius is a frog, then Bernhard is white. There is a very good chance that if either John dropped the apple, or Julius is a frog, then Jessica is a mouse.
hypothesis: It is highly unlikely that either John dropped the apple, or Julius is a frog.
valid_hypothesis: Chances are about even that either John dropped the apple, or Julius is a frog.
invalid_hypothesis: It is highly unlikely that either John dropped the apple, or Julius is a frog.
hypothesis_assertion: Either John dropped the apple, or Julius is a frog.