context: It is unlikely that Gertrude is a mouse. There is little chance that Mary got the milk. It is highly unlikely that Julius is a rhino. There is little chance that if either Mary got the milk, or Gertrude is a mouse, then Greg is yellow. There is a better than even chance that if Gertrude is a mouse, and Julius is a rhino, then Brian is a frog. We believe that if either Mary got the milk, or Gertrude is a mouse, then Lily is white.
hypothesis: It is probably not the case that lily is white, or Mary got the milk.
valid_hypothesis: It is probably not the case that lily is white, or Mary got the milk.
invalid_hypothesis: It is probable that lily is white, or Mary got the milk.
hypothesis_assertion: Lily is white, or Mary got the milk.