context: It is likely that Greg is a rhino. It is highly likely that Bill dropped the apple. It is certain that Mary moved to the garden.
hypothesis: It is improbable that greg is a rhino, and Bill dropped the apple.
valid_hypothesis: There is a better than even chance that greg is a rhino, and Bill dropped the apple.
invalid_hypothesis: It is improbable that greg is a rhino, and Bill dropped the apple.
hypothesis_assertion: Greg is a rhino, and Bill dropped the apple.