context: It is impossible that Lily is a frog. It is probably the case that John went to the bedroom. It is probably the case that Bernhard is a lion. It is probable that if John went to the bedroom, or Lily is a frog, then Daniel dropped the apple. It is highly likely that if Lily is a frog, and Bernhard is a lion, then Julius is a swan. We doubt that if either Bernhard is a lion, or John went to the bedroom, then Yann is tired.
hypothesis: It is certain that john went to the bedroom, and Daniel dropped the apple.
valid_hypothesis: Chances are about even that john went to the bedroom, and Daniel dropped the apple.
invalid_hypothesis: It is certain that john went to the bedroom, and Daniel dropped the apple.
hypothesis_assertion: John went to the bedroom, and Daniel dropped the apple.