context: Chances are about even that John dropped the apple. It is certain that Mary went to the kitchen. It is probably not the case that Bill put down the milk.
hypothesis: It is almost certain that either Mary went to the kitchen, or John dropped the apple.
valid_hypothesis: Chances are about even that either Mary went to the kitchen, or John dropped the apple.
invalid_hypothesis: It is almost certain that either Mary went to the kitchen, or John dropped the apple.
hypothesis_assertion: Either Mary went to the kitchen, or John dropped the apple.