context: It is likely that Julius is gray. We doubt that Mary dropped the apple. It is probably the case that Brian is a lion. It is probably not the case that if either Mary dropped the apple, or Brian is a lion, then Bill went to the garden. It is certain that if Julius is gray, and Mary dropped the apple, then John moved to the office. There is little chance that if Brian is a lion, or Mary dropped the apple, then Jessica is a sheep.
hypothesis: It is likely that bill went to the garden, or Jessica is a sheep.
valid_hypothesis: It is unlikely that bill went to the garden, or Jessica is a sheep.
invalid_hypothesis: It is likely that bill went to the garden, or Jessica is a sheep.
hypothesis_assertion: Bill went to the garden, or Jessica is a sheep.