context: There is almost no chance that Greg is green. It is probably the case that Brian is white. We doubt that Julius is gray. There is a better than even chance that if either Julius is gray, or Brian is white, then Lily is a frog. It is highly likely that if either Greg is green, or Brian is white, then Sandra took the milk. It is highly unlikely that if Greg is green, or Brian is white, then Mary went to the kitchen.
hypothesis: There is almost no chance that julius is gray, or Lily is a frog.
valid_hypothesis: Chances are about even that julius is gray, or Lily is a frog.
invalid_hypothesis: There is almost no chance that julius is gray, or Lily is a frog.
hypothesis_assertion: Julius is gray, or Lily is a frog.