context: It is improbable that Mary went to the kitchen. We doubt that Fred moved to the office. It is likely that Brian is a rhino. We doubt that if either Brian is a rhino, or Mary went to the kitchen, then Emily is a sheep. There is a very good chance that if either Brian is a rhino, or Fred moved to the office, then Julius is a lion. It is likely that if Fred moved to the office, and Brian is a rhino, then Greg is a swan.
hypothesis: There is almost no chance that emily is a sheep, and Greg is a swan.
valid_hypothesis: There is almost no chance that emily is a sheep, and Greg is a swan.
invalid_hypothesis: There is a very good chance that emily is a sheep, and Greg is a swan.
hypothesis_assertion: Emily is a sheep, and Greg is a swan.