context: It is impossible that Greg is green. It is almost certain that Jeff went to the garden. It is certain that Julius is gray.
hypothesis: There is almost no chance that either Julius is gray, or Greg is green.
valid_hypothesis: It is certain that either Julius is gray, or Greg is green.
invalid_hypothesis: There is almost no chance that either Julius is gray, or Greg is green.
hypothesis_assertion: Either Julius is gray, or Greg is green.