context: There is a very good chance that Brian is yellow. Chances are slight that Sandra took the apple. It is almost certain that Greg is gray. There is a very good chance that if Sandra took the apple, and Brian is yellow, then Mary went to the office. It is highly unlikely that if Brian is yellow, or Sandra took the apple, then Bernhard is a frog. We doubt that if Greg is gray, and Brian is yellow, then Julius is green.
hypothesis: It is highly unlikely that mary went to the office, and Brian is yellow.
valid_hypothesis: It is highly unlikely that mary went to the office, and Brian is yellow.
invalid_hypothesis: It is likely that mary went to the office, and Brian is yellow.
hypothesis_assertion: Mary went to the office, and Brian is yellow.