context: It is probably not the case that Jeff went to the office. We doubt that John discarded the milk. Chances are about even that Greg is a swan. We doubt that if Greg is a swan, and John discarded the milk, then Daniel left the football. We believe that if either Greg is a swan, or Jeff went to the office, then Lily is a rhino. Chances are about even that if John discarded the milk, or Greg is a swan, then Yann is thirsty.
hypothesis: There is almost no chance that lily is a rhino, or John discarded the milk.
valid_hypothesis: Chances are about even that lily is a rhino, or John discarded the milk.
invalid_hypothesis: There is almost no chance that lily is a rhino, or John discarded the milk.
hypothesis_assertion: Lily is a rhino, or John discarded the milk.