context: It is impossible that Greg is gray. Chances are slight that Bernhard is a swan. It is highly likely that Sandra got the apple. It is impossible that if either Sandra got the apple, or Bernhard is a swan, then Mary went to the office. We doubt that if Sandra got the apple, and Bernhard is a swan, then Brian is a rhino. It is certain that if either Greg is gray, or Sandra got the apple, then Lily is yellow.
hypothesis: It is highly likely that bernhard is a swan, or Lily is yellow.
valid_hypothesis: It is highly likely that bernhard is a swan, or Lily is yellow.
invalid_hypothesis: It is unlikely that bernhard is a swan, or Lily is yellow.
hypothesis_assertion: Bernhard is a swan, or Lily is yellow.