context: Chances are slight that Daniel left the apple. It is highly likely that Emily is a sheep. We doubt that John moved to the office. There is a very good chance that if Daniel left the apple, and Emily is a sheep, then Brian is green. We believe that if John moved to the office, and Emily is a sheep, then Bernhard is a swan. There is almost no chance that if John moved to the office, and Daniel left the apple, then Lily is white.
hypothesis: It is impossible that either Daniel left the apple, or Emily is a sheep.
valid_hypothesis: There is a very good chance that either Daniel left the apple, or Emily is a sheep.
invalid_hypothesis: It is impossible that either Daniel left the apple, or Emily is a sheep.
hypothesis_assertion: Either Daniel left the apple, or Emily is a sheep.