context: It is probable that Mary discarded the milk. We believe that John left the football. We doubt that Sandra took the apple. It is probable that if John left the football, or Sandra took the apple, then Lily is green. It is probably the case that if Mary discarded the milk, or John left the football, then Brian is a swan. It is probable that if Sandra took the apple, or John left the football, then Emily is a sheep.
hypothesis: There is a better than even chance that emily is a sheep, or Sandra took the apple.
valid_hypothesis: There is a better than even chance that emily is a sheep, or Sandra took the apple.
invalid_hypothesis: It is highly unlikely that emily is a sheep, or Sandra took the apple.
hypothesis_assertion: Emily is a sheep, or Sandra took the apple.