context: There is a very good chance that John took the apple. It is improbable that Julius is yellow. It is impossible that Lily is white. We doubt that if Julius is yellow, and John took the apple, then Brian is a frog. It is likely that if either John took the apple, or Lily is white, then Mary picked up the milk. It is improbable that if Julius is yellow, and John took the apple, then Sumit is thirsty.
hypothesis: Chances are slight that either Lily is white, or Julius is yellow.
valid_hypothesis: Chances are slight that either Lily is white, or Julius is yellow.
invalid_hypothesis: It is almost certain that either Lily is white, or Julius is yellow.
hypothesis_assertion: Either Lily is white, or Julius is yellow.