context: It is highly likely that Julius is white. It is almost certain that Bernhard is a swan. It is probably the case that Brian is a frog. It is certain that if Bernhard is a swan, or Brian is a frog, then John went to the hallway. It is improbable that if Bernhard is a swan, or Julius is white, then Sandra left the milk. Chances are slight that if Brian is a frog, or Bernhard is a swan, then Mary got the football.
hypothesis: We doubt that mary got the football, or Sandra left the milk.
valid_hypothesis: We doubt that mary got the football, or Sandra left the milk.
invalid_hypothesis: There is a very good chance that mary got the football, or Sandra left the milk.
hypothesis_assertion: Mary got the football, or Sandra left the milk.