context: It is probably not the case that Bernhard is a swan. We believe that Lily is a rhino. There is a better than even chance that Mary went to the office. It is probable that if Mary went to the office, or Bernhard is a swan, then Greg is gray. It is probable that if either Mary went to the office, or Bernhard is a swan, then John discarded the milk. It is improbable that if Mary went to the office, and Bernhard is a swan, then Brian is green.
hypothesis: There is a better than even chance that either Lily is a rhino, or John discarded the milk.
valid_hypothesis: There is a better than even chance that either Lily is a rhino, or John discarded the milk.
invalid_hypothesis: It is impossible that either Lily is a rhino, or John discarded the milk.
hypothesis_assertion: Either Lily is a rhino, or John discarded the milk.