context: Chances are slight that Lily is a lion. We doubt that Mary went to the office. There is a very good chance that Julius is a rhino.
hypothesis: It is highly likely that either Mary went to the office, or Lily is a lion.
valid_hypothesis: It is probably not the case that either Mary went to the office, or Lily is a lion.
invalid_hypothesis: It is highly likely that either Mary went to the office, or Lily is a lion.
hypothesis_assertion: Either Mary went to the office, or Lily is a lion.