context: It is probable that Brian is green. We doubt that John went to the office. It is impossible that Greg is gray.
hypothesis: It is probable that brian is green, and John went to the office.
valid_hypothesis: There is little chance that brian is green, and John went to the office.
invalid_hypothesis: It is probable that brian is green, and John went to the office.
hypothesis_assertion: Brian is green, and John went to the office.