context: We believe that Brian is a lion. It is highly unlikely that Lily is yellow. Chances are slight that Greg is a frog. It is unlikely that if Greg is a frog, and Lily is yellow, then Julius is gray. It is probably the case that if either Greg is a frog, or Brian is a lion, then Mary put down the milk. We doubt that if either Lily is yellow, or Greg is a frog, then John moved to the office.
hypothesis: There is almost no chance that either Julius is gray, or Brian is a lion.
valid_hypothesis: We believe that either Julius is gray, or Brian is a lion.
invalid_hypothesis: There is almost no chance that either Julius is gray, or Brian is a lion.
hypothesis_assertion: Either Julius is gray, or Brian is a lion.