context: Chances are about even that Julius is gray. There is a better than even chance that Mary went to the office. We doubt that Brian is green. There is a better than even chance that if either Brian is green, or Julius is gray, then Winona is a cat. It is highly unlikely that if either Mary went to the office, or Julius is gray, then Greg is a frog. It is highly unlikely that if Julius is gray, and Mary went to the office, then Sandra got the apple.
hypothesis: We believe that winona is a cat, and Brian is green.
valid_hypothesis: It is highly unlikely that winona is a cat, and Brian is green.
invalid_hypothesis: We believe that winona is a cat, and Brian is green.
hypothesis_assertion: Winona is a cat, and Brian is green.