context: It is highly likely that Bernhard is a rhino. There is a better than even chance that Mary dropped the milk. It is probably not the case that Brian is white. There is almost no chance that if either Bernhard is a rhino, or Mary dropped the milk, then Lily is a frog. It is probably the case that if Brian is white, or Mary dropped the milk, then Julius is green. It is highly likely that if Mary dropped the milk, and Bernhard is a rhino, then John went to the kitchen.
hypothesis: Chances are about even that either Julius is green, or Lily is a frog.
valid_hypothesis: Chances are about even that either Julius is green, or Lily is a frog.
invalid_hypothesis: It is highly unlikely that either Julius is green, or Lily is a frog.
hypothesis_assertion: Either Julius is green, or Lily is a frog.