context: It is highly likely that Brian is a lion. Chances are slight that John dropped the apple. It is improbable that Bernhard is a swan.
hypothesis: It is probable that brian is a lion, and John dropped the apple.
valid_hypothesis: There is little chance that brian is a lion, and John dropped the apple.
invalid_hypothesis: It is probable that brian is a lion, and John dropped the apple.
hypothesis_assertion: Brian is a lion, and John dropped the apple.