context: There is a very good chance that Bernhard is a swan. There is a better than even chance that Brian is yellow. It is improbable that Jeff went to the garden.
hypothesis: There is a better than even chance that either Brian is yellow, or Jeff went to the garden.
valid_hypothesis: There is a better than even chance that either Brian is yellow, or Jeff went to the garden.
invalid_hypothesis: There is little chance that either Brian is yellow, or Jeff went to the garden.
hypothesis_assertion: Either Brian is yellow, or Jeff went to the garden.