context: It is highly unlikely that Greg is a lion. It is improbable that Yann is bored. We doubt that Fred dropped the apple.
hypothesis: There is a very good chance that yann is bored, or Fred dropped the apple.
valid_hypothesis: It is probably not the case that yann is bored, or Fred dropped the apple.
invalid_hypothesis: There is a very good chance that yann is bored, or Fred dropped the apple.
hypothesis_assertion: Yann is bored, or Fred dropped the apple.