context: Chances are about even that Julius is a swan. It is improbable that Jessica is a mouse. It is certain that Greg is a rhino.
hypothesis: Chances are slight that greg is a rhino, or Jessica is a mouse.
valid_hypothesis: It is certain that greg is a rhino, or Jessica is a mouse.
invalid_hypothesis: Chances are slight that greg is a rhino, or Jessica is a mouse.
hypothesis_assertion: Greg is a rhino, or Jessica is a mouse.