context: It is probably the case that John went to the garden. We believe that Julius is a swan. It is almost certain that Brian is white. It is improbable that if John went to the garden, or Julius is a swan, then Lily is yellow. It is highly unlikely that if either John went to the garden, or Brian is white, then Emily is a mouse. It is highly likely that if Brian is white, and John went to the garden, then Fred is in the office.
hypothesis: It is probably not the case that either Brian is white, or Lily is yellow.
valid_hypothesis: It is highly likely that either Brian is white, or Lily is yellow.
invalid_hypothesis: It is probably not the case that either Brian is white, or Lily is yellow.
hypothesis_assertion: Either Brian is white, or Lily is yellow.