context: Chances are slight that Julius is a rhino. It is likely that Mary took the apple. Chances are about even that Lily is white. It is probably the case that if Julius is a rhino, and Lily is white, then Bernhard is green. It is probably not the case that if Mary took the apple, and Lily is white, then John went to the kitchen. We believe that if Julius is a rhino, and Lily is white, then Greg is gray.
hypothesis: Chances are about even that either Lily is white, or Julius is a rhino.
valid_hypothesis: Chances are about even that either Lily is white, or Julius is a rhino.
invalid_hypothesis: It is impossible that either Lily is white, or Julius is a rhino.
hypothesis_assertion: Either Lily is white, or Julius is a rhino.