context: It is impossible that Sandra grabbed the apple. It is likely that Julius is gray. It is improbable that Lily is a lion. We doubt that if Julius is gray, and Sandra grabbed the apple, then Bernhard is green. It is impossible that if either Sandra grabbed the apple, or Julius is gray, then Bill is in the school. It is probable that if Lily is a lion, or Sandra grabbed the apple, then John went to the garden.
hypothesis: It is probably the case that bill is in the school, or Julius is gray.
valid_hypothesis: It is probably the case that bill is in the school, or Julius is gray.
invalid_hypothesis: Chances are slight that bill is in the school, or Julius is gray.
hypothesis_assertion: Bill is in the school, or Julius is gray.