context: It is probably not the case that Julius is white. Chances are slight that Winona is a mouse. It is certain that Greg is gray.
hypothesis: It is improbable that winona is a mouse, and Greg is gray.
valid_hypothesis: It is improbable that winona is a mouse, and Greg is gray.
invalid_hypothesis: We believe that winona is a mouse, and Greg is gray.
hypothesis_assertion: Winona is a mouse, and Greg is gray.