context: There is a very good chance that John moved to the office. It is impossible that Lily is green. There is little chance that Greg is a swan. There is little chance that if either Greg is a swan, or John moved to the office, then Sandra left the milk. There is almost no chance that if either Greg is a swan, or John moved to the office, then Mary put down the milk. It is almost certain that if John moved to the office, or Greg is a swan, then Gertrude is a cat.
hypothesis: It is improbable that gertrude is a cat, or Sandra left the milk.
valid_hypothesis: There is a very good chance that gertrude is a cat, or Sandra left the milk.
invalid_hypothesis: It is improbable that gertrude is a cat, or Sandra left the milk.
hypothesis_assertion: Gertrude is a cat, or Sandra left the milk.