context: We believe that Brian is green. It is probably the case that Sandra took the milk. We doubt that John went to the office.
hypothesis: We believe that john went to the office, and Brian is green.
valid_hypothesis: Chances are slight that john went to the office, and Brian is green.
invalid_hypothesis: We believe that john went to the office, and Brian is green.
hypothesis_assertion: John went to the office, and Brian is green.