context: It is highly likely that Greg is green. We believe that John went to the office. We believe that Mary grabbed the milk.
hypothesis: It is probably not the case that either John went to the office, or Greg is green.
valid_hypothesis: It is probably not the case that either John went to the office, or Greg is green.
invalid_hypothesis: There is a very good chance that either John went to the office, or Greg is green.
hypothesis_assertion: Either John went to the office, or Greg is green.