context: It is highly likely that Greg is a swan. It is highly likely that Bill is in the office. It is probably not the case that Brian is a frog.
hypothesis: It is almost certain that brian is a frog, or Greg is a swan.
valid_hypothesis: It is almost certain that brian is a frog, or Greg is a swan.
invalid_hypothesis: It is highly unlikely that brian is a frog, or Greg is a swan.
hypothesis_assertion: Brian is a frog, or Greg is a swan.