context: There is little chance that Lily is a rhino. It is probably the case that John went to the kitchen. It is almost certain that Brian is a lion. It is highly likely that if either Lily is a rhino, or John went to the kitchen, then Greg is white. There is a very good chance that if Lily is a rhino, or John went to the kitchen, then Bernhard is a swan. There is a very good chance that if either Lily is a rhino, or Brian is a lion, then Gertrude is a wolf.
hypothesis: We doubt that either Greg is white, or John went to the kitchen.
valid_hypothesis: We doubt that either Greg is white, or John went to the kitchen.
invalid_hypothesis: It is likely that either Greg is white, or John went to the kitchen.
hypothesis_assertion: Either Greg is white, or John went to the kitchen.