context: It is highly likely that Brian is yellow. It is highly likely that John is in the office. It is certain that Lily is green.
hypothesis: It is improbable that either John is in the office, or Lily is green.
valid_hypothesis: It is improbable that either John is in the office, or Lily is green.
invalid_hypothesis: There is a better than even chance that either John is in the office, or Lily is green.
hypothesis_assertion: Either John is in the office, or Lily is green.