context: It is unlikely that John took the milk. There is a very good chance that Jessica is a sheep. It is improbable that Julius is gray.
hypothesis: It is certain that jessica is a sheep, and John took the milk.
valid_hypothesis: We doubt that jessica is a sheep, and John took the milk.
invalid_hypothesis: It is certain that jessica is a sheep, and John took the milk.
hypothesis_assertion: Jessica is a sheep, and John took the milk.