context: There is a very good chance that Lily is a rhino. It is impossible that Fred moved to the cinema. Chances are about even that John went to the office.
hypothesis: It is certain that either John went to the office, or Lily is a rhino.
valid_hypothesis: Chances are about even that either John went to the office, or Lily is a rhino.
invalid_hypothesis: It is certain that either John went to the office, or Lily is a rhino.
hypothesis_assertion: Either John went to the office, or Lily is a rhino.