context: It is impossible that Bernhard is a lion. It is improbable that Greg is a rhino. It is certain that Bill went to the office. It is probably not the case that if either Greg is a rhino, or Bill went to the office, then Sandra dropped the milk. It is improbable that if either Bernhard is a lion, or Greg is a rhino, then Winona is a wolf. There is little chance that if Greg is a rhino, and Bill went to the office, then Lily is a frog.
hypothesis: It is certain that winona is a wolf, and Bill went to the office.
valid_hypothesis: There is almost no chance that winona is a wolf, and Bill went to the office.
invalid_hypothesis: It is certain that winona is a wolf, and Bill went to the office.
hypothesis_assertion: Winona is a wolf, and Bill went to the office.