context: Chances are slight that Julius is a frog. It is certain that Brian is gray. It is unlikely that Bernhard is gray. It is unlikely that if either Brian is gray, or Julius is a frog, then Jeff went to the garden. There is almost no chance that if Brian is gray, or Bernhard is gray, then Greg is white. Chances are about even that if Brian is gray, and Julius is a frog, then John moved to the office.
hypothesis: It is probable that brian is gray, and John moved to the office.
valid_hypothesis: It is highly unlikely that brian is gray, and John moved to the office.
invalid_hypothesis: It is probable that brian is gray, and John moved to the office.
hypothesis_assertion: Brian is gray, and John moved to the office.