context: It is almost certain that Julius is a swan. It is unlikely that Mary took the apple. It is almost certain that Winona is a mouse. There is almost no chance that if either Winona is a mouse, or Julius is a swan, then John went to the office. Chances are slight that if Julius is a swan, or Winona is a mouse, then Bernhard is gray. It is highly unlikely that if Julius is a swan, or Mary took the apple, then Greg is gray.
hypothesis: It is highly likely that either Greg is gray, or Winona is a mouse.
valid_hypothesis: It is highly likely that either Greg is gray, or Winona is a mouse.
invalid_hypothesis: It is impossible that either Greg is gray, or Winona is a mouse.
hypothesis_assertion: Either Greg is gray, or Winona is a mouse.