context: We believe that Greg is a rhino. It is certain that Sandra left the football. Chances are slight that Julius is a frog.
hypothesis: It is highly likely that either Sandra left the football, or Julius is a frog.
valid_hypothesis: It is highly likely that either Sandra left the football, or Julius is a frog.
invalid_hypothesis: Chances are slight that either Sandra left the football, or Julius is a frog.
hypothesis_assertion: Either Sandra left the football, or Julius is a frog.