context: We believe that John went to the office. There is almost no chance that Greg is green. We believe that Mary put down the milk. We doubt that if either Greg is green, or John went to the office, then Brian is a frog. It is probable that if Greg is green, and John went to the office, then Winona is a mouse. It is probably not the case that if either Greg is green, or John went to the office, then Lily is a lion.
hypothesis: It is certain that either Lily is a lion, or Winona is a mouse.
valid_hypothesis: We doubt that either Lily is a lion, or Winona is a mouse.
invalid_hypothesis: It is certain that either Lily is a lion, or Winona is a mouse.
hypothesis_assertion: Either Lily is a lion, or Winona is a mouse.