context: It is likely that Brian is a rhino. It is probably not the case that Mary went to the hallway. It is highly likely that Julius is white. It is certain that if Brian is a rhino, or Mary went to the hallway, then Greg is green. Chances are slight that if Mary went to the hallway, or Brian is a rhino, then Sandra left the apple. Chances are about even that if Brian is a rhino, and Mary went to the hallway, then Emily is a wolf.
hypothesis: It is improbable that brian is a rhino, and Emily is a wolf.
valid_hypothesis: It is improbable that brian is a rhino, and Emily is a wolf.
invalid_hypothesis: It is probable that brian is a rhino, and Emily is a wolf.
hypothesis_assertion: Brian is a rhino, and Emily is a wolf.