7. The method of claim 1 wherein evaluating the first and contrary set of hypotheses further comprises determining a confidence level for each answer based on the first and second set of evidence for candidate answers supporting each hypothesis.
7. The method of claim 1 wherein evaluating the first and contrary set of hypotheses further comprises determining a confidence level for each answer based on the first and second set of evidence for candidate answers supporting each hypothesis. 8. The method of claim 7 further comprising ranking the set of answers based on the confidence levels for each set of hypotheses.