context: We doubt that Greg is a rhino. There is almost no chance that Mary went to the garden. It is certain that Brian is yellow.
hypothesis: It is unlikely that either Mary went to the garden, or Greg is a rhino.
valid_hypothesis: It is unlikely that either Mary went to the garden, or Greg is a rhino.
invalid_hypothesis: It is likely that either Mary went to the garden, or Greg is a rhino.
hypothesis_assertion: Either Mary went to the garden, or Greg is a rhino.