context: There is almost no chance that Mary put down the milk. It is likely that Julius is yellow. Chances are about even that Greg is a lion. There is a very good chance that if either Mary put down the milk, or Greg is a lion, then John picked up the apple. Chances are slight that if either Julius is yellow, or Greg is a lion, then Gertrude is a wolf. It is probably the case that if either Julius is yellow, or Greg is a lion, then Lily is green.
hypothesis: Chances are about even that mary put down the milk, or John picked up the apple.
valid_hypothesis: Chances are about even that mary put down the milk, or John picked up the apple.
invalid_hypothesis: It is impossible that mary put down the milk, or John picked up the apple.
hypothesis_assertion: Mary put down the milk, or John picked up the apple.