context: There is a better than even chance that John put down the milk. It is unlikely that Julius is a frog. It is certain that Brian is white.
hypothesis: It is improbable that brian is white, and John put down the milk.
valid_hypothesis: There is a better than even chance that brian is white, and John put down the milk.
invalid_hypothesis: It is improbable that brian is white, and John put down the milk.
hypothesis_assertion: Brian is white, and John put down the milk.