context: There is almost no chance that John left the milk. There is a better than even chance that Julius is green. There is a better than even chance that Sandra took the apple. It is probable that if Sandra took the apple, or Julius is green, then Brian is a lion. It is probably the case that if Sandra took the apple, or Julius is green, then Mary went to the hallway. There is a very good chance that if John left the milk, or Sandra took the apple, then Greg is yellow.
hypothesis: We believe that either Brian is a lion, or Sandra took the apple.
valid_hypothesis: It is probably not the case that either Brian is a lion, or Sandra took the apple.
invalid_hypothesis: We believe that either Brian is a lion, or Sandra took the apple.
hypothesis_assertion: Either Brian is a lion, or Sandra took the apple.