context: It is probably not the case that Greg is a swan. There is a very good chance that Bernhard is green. It is almost certain that Sandra left the football.
hypothesis: It is likely that either Greg is a swan, or Bernhard is green.
valid_hypothesis: It is likely that either Greg is a swan, or Bernhard is green.
invalid_hypothesis: It is improbable that either Greg is a swan, or Bernhard is green.
hypothesis_assertion: Either Greg is a swan, or Bernhard is green.