context: It is improbable that Julius is a swan. There is almost no chance that Lily is gray. It is highly unlikely that Greg is yellow.
hypothesis: It is probably the case that either Lily is gray, or Greg is yellow.
valid_hypothesis: It is highly unlikely that either Lily is gray, or Greg is yellow.
invalid_hypothesis: It is probably the case that either Lily is gray, or Greg is yellow.
hypothesis_assertion: Either Lily is gray, or Greg is yellow.