context: Chances are slight that Jeff moved to the office. It is improbable that Julius is a swan. It is certain that Mary took the apple.
hypothesis: We doubt that jeff moved to the office, or Julius is a swan.
valid_hypothesis: We doubt that jeff moved to the office, or Julius is a swan.
invalid_hypothesis: It is probable that jeff moved to the office, or Julius is a swan.
hypothesis_assertion: Jeff moved to the office, or Julius is a swan.