context: It is likely that Julius is a rhino. There is almost no chance that Brian is green. It is likely that Mary dropped the apple. There is almost no chance that if Julius is a rhino, and Brian is green, then Winona is a mouse. There is almost no chance that if either Julius is a rhino, or Mary dropped the apple, then Daniel took the apple. It is probably the case that if either Julius is a rhino, or Brian is green, then Greg is a lion.
hypothesis: It is impossible that either Mary dropped the apple, or Julius is a rhino.
valid_hypothesis: Chances are about even that either Mary dropped the apple, or Julius is a rhino.
invalid_hypothesis: It is impossible that either Mary dropped the apple, or Julius is a rhino.
hypothesis_assertion: Either Mary dropped the apple, or Julius is a rhino.