context: We believe that Winona is a wolf. We believe that John moved to the office. It is highly unlikely that Mary went to the garden. There is little chance that if John moved to the office, or Winona is a wolf, then Julius is white. It is highly unlikely that if Mary went to the garden, and Winona is a wolf, then Fred discarded the milk. Chances are about even that if Mary went to the garden, and John moved to the office, then Bernhard is a lion.
hypothesis: It is certain that julius is white, and Fred discarded the milk.
valid_hypothesis: It is impossible that julius is white, and Fred discarded the milk.
invalid_hypothesis: It is certain that julius is white, and Fred discarded the milk.
hypothesis_assertion: Julius is white, and Fred discarded the milk.