context: It is certain that Julius is a frog. It is improbable that Sandra left the football. It is probable that Brian is yellow. There is a very good chance that if Sandra left the football, and Brian is yellow, then John put down the apple. It is highly unlikely that if Julius is a frog, or Brian is yellow, then Lily is a swan. There is a better than even chance that if Julius is a frog, and Brian is yellow, then Mary moved to the office.
hypothesis: It is highly unlikely that brian is yellow, or Sandra left the football.
valid_hypothesis: We believe that brian is yellow, or Sandra left the football.
invalid_hypothesis: It is highly unlikely that brian is yellow, or Sandra left the football.
hypothesis_assertion: Brian is yellow, or Sandra left the football.