context: It is highly likely that Daniel left the milk. It is highly likely that Julius is a swan. It is almost certain that Greg is a frog. There is a better than even chance that if Greg is a frog, and Daniel left the milk, then Sandra got the apple. Chances are slight that if Julius is a swan, and Greg is a frog, then John moved to the garden. We believe that if Daniel left the milk, or Greg is a frog, then Bernhard is yellow.
hypothesis: There is a very good chance that either John moved to the garden, or Daniel left the milk.
valid_hypothesis: There is a very good chance that either John moved to the garden, or Daniel left the milk.
invalid_hypothesis: It is unlikely that either John moved to the garden, or Daniel left the milk.
hypothesis_assertion: Either John moved to the garden, or Daniel left the milk.