context: It is unlikely that Bill is in the office. It is highly unlikely that Mary dropped the apple. There is a very good chance that Daniel left the football.
hypothesis: We doubt that daniel left the football, or Mary dropped the apple.
valid_hypothesis: There is a very good chance that daniel left the football, or Mary dropped the apple.
invalid_hypothesis: We doubt that daniel left the football, or Mary dropped the apple.
hypothesis_assertion: Daniel left the football, or Mary dropped the apple.