context: It is probably the case that Bernhard is gray. It is likely that Brian is a frog. It is improbable that John took the apple. It is probably not the case that if Brian is a frog, and John took the apple, then Lily is white. It is highly likely that if John took the apple, and Bernhard is gray, then Mary moved to the office. It is certain that if Bernhard is gray, and Brian is a frog, then Greg is white.
hypothesis: There is almost no chance that lily is white, or Brian is a frog.
valid_hypothesis: It is likely that lily is white, or Brian is a frog.
invalid_hypothesis: There is almost no chance that lily is white, or Brian is a frog.
hypothesis_assertion: Lily is white, or Brian is a frog.