context: Chances are slight that John left the milk. It is certain that Jeff went to the garden. It is likely that Greg is gray.
hypothesis: It is highly unlikely that john left the milk, and Greg is gray.
valid_hypothesis: It is highly unlikely that john left the milk, and Greg is gray.
invalid_hypothesis: It is highly likely that john left the milk, and Greg is gray.
hypothesis_assertion: John left the milk, and Greg is gray.