context: There is a very good chance that Julius is a lion. There is little chance that John went to the office. It is certain that Daniel grabbed the milk. It is improbable that if either John went to the office, or Daniel grabbed the milk, then Mary left the apple. It is almost certain that if Julius is a lion, and Daniel grabbed the milk, then Brian is gray. It is probably the case that if either Daniel grabbed the milk, or John went to the office, then Fred is in the school.
hypothesis: There is a very good chance that brian is gray, or Julius is a lion.
valid_hypothesis: There is a very good chance that brian is gray, or Julius is a lion.
invalid_hypothesis: It is impossible that brian is gray, or Julius is a lion.
hypothesis_assertion: Brian is gray, or Julius is a lion.