context: Chances are about even that Julius is a frog. There is a better than even chance that Greg is a swan. It is almost certain that John took the apple. There is a very good chance that if either Greg is a swan, or John took the apple, then Bernhard is gray. It is probable that if Julius is a frog, and Greg is a swan, then Mary went to the kitchen. It is highly likely that if either Greg is a swan, or Julius is a frog, then Brian is a lion.
hypothesis: It is almost certain that bernhard is gray, or John took the apple.
valid_hypothesis: It is almost certain that bernhard is gray, or John took the apple.
invalid_hypothesis: Chances are slight that bernhard is gray, or John took the apple.
hypothesis_assertion: Bernhard is gray, or John took the apple.