context: It is impossible that Greg is green. It is improbable that Mary went to the bedroom. There is almost no chance that Sandra took the milk.
hypothesis: It is probable that greg is green, and Sandra took the milk.
valid_hypothesis: It is impossible that greg is green, and Sandra took the milk.
invalid_hypothesis: It is probable that greg is green, and Sandra took the milk.
hypothesis_assertion: Greg is green, and Sandra took the milk.