context: There is little chance that Julius is a swan. It is probably the case that Daniel grabbed the apple. Chances are slight that Bernhard is green. It is certain that if Bernhard is green, and Julius is a swan, then Greg is yellow. It is probably not the case that if Daniel grabbed the apple, and Julius is a swan, then Mary moved to the office. It is probable that if Bernhard is green, and Daniel grabbed the apple, then Brian is a rhino.
hypothesis: It is impossible that brian is a rhino, and Mary moved to the office.
valid_hypothesis: It is impossible that brian is a rhino, and Mary moved to the office.
invalid_hypothesis: It is almost certain that brian is a rhino, and Mary moved to the office.
hypothesis_assertion: Brian is a rhino, and Mary moved to the office.