context: It is probably the case that Sandra grabbed the milk. We doubt that Julius is gray. It is certain that Daniel is in the garden. It is certain that if Julius is gray, or Sandra grabbed the milk, then Mary took the apple. It is improbable that if either Julius is gray, or Daniel is in the garden, then John went to the office. It is unlikely that if Daniel is in the garden, or Julius is gray, then Lily is green.
hypothesis: It is certain that daniel is in the garden, or Sandra grabbed the milk.
valid_hypothesis: It is certain that daniel is in the garden, or Sandra grabbed the milk.
invalid_hypothesis: Chances are about even that daniel is in the garden, or Sandra grabbed the milk.
hypothesis_assertion: Daniel is in the garden, or Sandra grabbed the milk.