context: It is impossible that Emily is a cat. We believe that Julius is green. It is certain that Lily is a rhino. It is almost certain that if Julius is green, and Lily is a rhino, then Brian is white. Chances are slight that if Lily is a rhino, and Emily is a cat, then John went to the kitchen. It is certain that if Emily is a cat, and Lily is a rhino, then Greg is gray.
hypothesis: It is impossible that either John went to the kitchen, or Emily is a cat.
valid_hypothesis: It is impossible that either John went to the kitchen, or Emily is a cat.
invalid_hypothesis: It is probably the case that either John went to the kitchen, or Emily is a cat.
hypothesis_assertion: Either John went to the kitchen, or Emily is a cat.