context: It is highly unlikely that Fred went to the office. It is probably the case that John got the football. It is impossible that Lily is green.
hypothesis: It is impossible that lily is green, and John got the football.
valid_hypothesis: It is impossible that lily is green, and John got the football.
invalid_hypothesis: There is a very good chance that lily is green, and John got the football.
hypothesis_assertion: Lily is green, and John got the football.