context: It is highly likely that John put down the apple. It is probably not the case that Mary went to the kitchen. Chances are about even that Daniel grabbed the milk. It is almost certain that if John put down the apple, and Daniel grabbed the milk, then Sandra got the football. Chances are about even that if either Mary went to the kitchen, or John put down the apple, then Bill moved to the office. It is probable that if Mary went to the kitchen, and John put down the apple, then Greg is a rhino.
hypothesis: It is almost certain that either Bill moved to the office, or Daniel grabbed the milk.
valid_hypothesis: Chances are about even that either Bill moved to the office, or Daniel grabbed the milk.
invalid_hypothesis: It is almost certain that either Bill moved to the office, or Daniel grabbed the milk.
hypothesis_assertion: Either Bill moved to the office, or Daniel grabbed the milk.