context: It is impossible that Lily is white. It is impossible that Gertrude is a mouse. It is impossible that Bernhard is a swan. It is impossible that if Bernhard is a swan, or Gertrude is a mouse, then Winona is a wolf. It is highly unlikely that if Gertrude is a mouse, and Lily is white, then Greg is yellow. It is probably not the case that if either Bernhard is a swan, or Lily is white, then Mary dropped the milk.
hypothesis: It is impossible that lily is white, or Gertrude is a mouse.
valid_hypothesis: It is impossible that lily is white, or Gertrude is a mouse.
invalid_hypothesis: It is probable that lily is white, or Gertrude is a mouse.
hypothesis_assertion: Lily is white, or Gertrude is a mouse.