context: It is probably the case that Julius is gray. There is almost no chance that John went to the kitchen. There is a very good chance that Lily is a frog. It is impossible that if John went to the kitchen, or Julius is gray, then Sandra took the milk. We doubt that if Julius is gray, and John went to the kitchen, then Bernhard is a lion. We believe that if John went to the kitchen, or Lily is a frog, then Greg is a swan.
hypothesis: It is likely that john went to the kitchen, and Greg is a swan.
valid_hypothesis: There is almost no chance that john went to the kitchen, and Greg is a swan.
invalid_hypothesis: It is likely that john went to the kitchen, and Greg is a swan.
hypothesis_assertion: John went to the kitchen, and Greg is a swan.