context: It is improbable that Sandra got the football. We believe that Julius is yellow. Chances are slight that Mary moved to the garden.
hypothesis: It is unlikely that either Sandra got the football, or Mary moved to the garden.
valid_hypothesis: It is unlikely that either Sandra got the football, or Mary moved to the garden.
invalid_hypothesis: It is highly likely that either Sandra got the football, or Mary moved to the garden.
hypothesis_assertion: Either Sandra got the football, or Mary moved to the garden.