context: We doubt that Julius is white. There is almost no chance that Greg is a swan. It is highly unlikely that Gertrude is a wolf. It is improbable that if either Greg is a swan, or Gertrude is a wolf, then John went to the garden. It is likely that if Greg is a swan, or Gertrude is a wolf, then Lily is a frog. We believe that if Gertrude is a wolf, and Greg is a swan, then Bernhard is gray.
hypothesis: It is probably the case that lily is a frog, and Julius is white.
valid_hypothesis: It is impossible that lily is a frog, and Julius is white.
invalid_hypothesis: It is probably the case that lily is a frog, and Julius is white.
hypothesis_assertion: Lily is a frog, and Julius is white.