context: There is almost no chance that Greg is a rhino. Chances are about even that Sandra dropped the milk. We believe that Bill moved to the garden.
hypothesis: We doubt that either Greg is a rhino, or Bill moved to the garden.
valid_hypothesis: We believe that either Greg is a rhino, or Bill moved to the garden.
invalid_hypothesis: We doubt that either Greg is a rhino, or Bill moved to the garden.
hypothesis_assertion: Either Greg is a rhino, or Bill moved to the garden.