context: Chances are slight that Brian is a swan. It is probably the case that Lily is green. It is probable that Emily is a wolf. Chances are about even that if Lily is green, or Brian is a swan, then Jessica is a mouse. It is certain that if either Brian is a swan, or Lily is green, then Mary dropped the milk. It is certain that if either Emily is a wolf, or Lily is green, then Bernhard is a lion.
hypothesis: It is highly likely that emily is a wolf, and Bernhard is a lion.
valid_hypothesis: We doubt that emily is a wolf, and Bernhard is a lion.
invalid_hypothesis: It is highly likely that emily is a wolf, and Bernhard is a lion.
hypothesis_assertion: Emily is a wolf, and Bernhard is a lion.