context: We believe that Julius is white. It is likely that Mary went to the hallway. We believe that Brian is a frog. There is a better than even chance that if Mary went to the hallway, or Brian is a frog, then John picked up the apple. It is certain that if either Mary went to the hallway, or Julius is white, then Daniel left the milk. Chances are about even that if Mary went to the hallway, and Brian is a frog, then Lily is a rhino.
hypothesis: Chances are about even that either John picked up the apple, or Daniel left the milk.
valid_hypothesis: Chances are about even that either John picked up the apple, or Daniel left the milk.
invalid_hypothesis: It is impossible that either John picked up the apple, or Daniel left the milk.
hypothesis_assertion: Either John picked up the apple, or Daniel left the milk.