context: It is probably not the case that Greg is yellow. It is probably the case that John put down the milk. It is certain that Jessica is a wolf. It is certain that if John put down the milk, and Greg is yellow, then Julius is white. It is unlikely that if either John put down the milk, or Greg is yellow, then Mary went to the kitchen. It is highly likely that if either Jessica is a wolf, or John put down the milk, then Fred is in the bedroom.
hypothesis: Chances are slight that either Mary went to the kitchen, or John put down the milk.
valid_hypothesis: There is a better than even chance that either Mary went to the kitchen, or John put down the milk.
invalid_hypothesis: Chances are slight that either Mary went to the kitchen, or John put down the milk.
hypothesis_assertion: Either Mary went to the kitchen, or John put down the milk.