context: It is improbable that Greg is a frog. It is highly unlikely that Bernhard is a swan. It is highly likely that Julius is white. There is a very good chance that if Julius is white, or Bernhard is a swan, then John left the football. It is certain that if Bernhard is a swan, and Julius is white, then Winona is a wolf. We doubt that if Julius is white, and Bernhard is a swan, then Lily is white.
hypothesis: There is little chance that either Greg is a frog, or Bernhard is a swan.
valid_hypothesis: There is little chance that either Greg is a frog, or Bernhard is a swan.
invalid_hypothesis: We believe that either Greg is a frog, or Bernhard is a swan.
hypothesis_assertion: Either Greg is a frog, or Bernhard is a swan.