context: It is almost certain that Fred moved to the office. Chances are about even that John went to the garden. It is probably not the case that Julius is green. It is almost certain that if Fred moved to the office, or Julius is green, then Lily is white. It is almost certain that if either Fred moved to the office, or Julius is green, then Sandra grabbed the milk. It is almost certain that if John went to the garden, and Julius is green, then Gertrude is a cat.
hypothesis: Chances are slight that julius is green, and Gertrude is a cat.
valid_hypothesis: Chances are slight that julius is green, and Gertrude is a cat.
invalid_hypothesis: It is almost certain that julius is green, and Gertrude is a cat.
hypothesis_assertion: Julius is green, and Gertrude is a cat.