context: We believe that Daniel dropped the apple. We believe that Greg is a rhino. It is almost certain that Mary went to the hallway. Chances are slight that if either Mary went to the hallway, or Greg is a rhino, then Sandra left the apple. There is a very good chance that if Mary went to the hallway, and Greg is a rhino, then Brian is gray. There is little chance that if either Greg is a rhino, or Daniel dropped the apple, then Jeff discarded the milk.
hypothesis: We believe that sandra left the apple, or Greg is a rhino.
valid_hypothesis: We believe that sandra left the apple, or Greg is a rhino.
invalid_hypothesis: Chances are slight that sandra left the apple, or Greg is a rhino.
hypothesis_assertion: Sandra left the apple, or Greg is a rhino.