context: Chances are about even that Lily is green. We doubt that Greg is gray. We doubt that Jessica is a sheep.
hypothesis: It is certain that lily is green, and Jessica is a sheep.
valid_hypothesis: Chances are slight that lily is green, and Jessica is a sheep.
invalid_hypothesis: It is certain that lily is green, and Jessica is a sheep.
hypothesis_assertion: Lily is green, and Jessica is a sheep.