14. The method of claim 13 , further comprising: after inputting said at least one response into said question-answer system, re-evaluating said confidence score for said plurality of candidate answers, using said computerized device.
13. A method of enhancing the accuracy of a question-answer system, said method comprising: receiving a question into a computerized question-answer system operating on a computerized device; automatically generating, by said computerized device, a plurality of candidate answers to said question; evaluating, by said computerized device, sources of evidence used to generate said plurality of candidate answers to identify marginal evidence, said marginal evidence contributes only partially to a candidate answer; determining, by said computerized device, a confidence score for each of said plurality of candidate answers; automatically identifying, by said computerized device, information not provided by said marginal evidence that could further develop said confidence score; automatically generating, by said computerized device, at least one follow-on inquiry based on said information; outputting, by said computerized device, said at least one follow-on inquiry to external sources separate from said question-answer system to obtain responses to said at least one follow-on inquiry; receiving, by said computerized device, from said external sources at least one response to said at least one follow-on inquiry; inputting, using said computerized device, said at least one response into said question-answer system; and automatically developing, by said computerized device, additional logical rules and additional evidence for said computerized question-answer system based on said at least one response to said at least one follow-on inquiry.