context: Chances are slight that Julius is a lion. There is almost no chance that John got the football. We believe that Brian is green.
hypothesis: It is probable that either Brian is green, or Julius is a lion.
valid_hypothesis: It is probable that either Brian is green, or Julius is a lion.
invalid_hypothesis: It is improbable that either Brian is green, or Julius is a lion.
hypothesis_assertion: Either Brian is green, or Julius is a lion.