context: It is almost certain that Bill went to the office. It is probable that Mary dropped the apple. It is certain that Lily is green. It is probable that if Mary dropped the apple, or Lily is green, then Julius is a rhino. There is a better than even chance that if Lily is green, and Mary dropped the apple, then Bernhard is yellow. It is probably the case that if either Mary dropped the apple, or Lily is green, then Sandra took the apple.
hypothesis: It is certain that bernhard is yellow, and Julius is a rhino.
valid_hypothesis: It is probably not the case that bernhard is yellow, and Julius is a rhino.
invalid_hypothesis: It is certain that bernhard is yellow, and Julius is a rhino.
hypothesis_assertion: Bernhard is yellow, and Julius is a rhino.