context: It is unlikely that Fred went to the hallway. There is a better than even chance that Bernhard is a frog. We believe that Julius is green.
hypothesis: It is improbable that fred went to the hallway, and Julius is green.
valid_hypothesis: It is improbable that fred went to the hallway, and Julius is green.
invalid_hypothesis: It is almost certain that fred went to the hallway, and Julius is green.
hypothesis_assertion: Fred went to the hallway, and Julius is green.