context: We believe that Bill is in the school. It is highly likely that Julius is gray. It is improbable that Greg is a lion.
hypothesis: Chances are slight that greg is a lion, and Julius is gray.
valid_hypothesis: Chances are slight that greg is a lion, and Julius is gray.
invalid_hypothesis: We believe that greg is a lion, and Julius is gray.
hypothesis_assertion: Greg is a lion, and Julius is gray.