context: Chances are slight that John went to the office. We doubt that Greg is yellow. It is probably not the case that Sandra dropped the milk.
hypothesis: It is probably not the case that john went to the office, or Greg is yellow.
valid_hypothesis: It is probably not the case that john went to the office, or Greg is yellow.
invalid_hypothesis: It is highly likely that john went to the office, or Greg is yellow.
hypothesis_assertion: John went to the office, or Greg is yellow.