9. The computer program product of claim 8 , wherein performing a follow-up question and answer conversation comprises performing a clustering operation on data in the corpus for the focus of statistical analysis and determining one or more driving factors for the focus of the statistical analysis based on results of the clustering operation.
9. The computer program product of claim 8 , wherein performing a follow-up question and answer conversation comprises performing a clustering operation on data in the corpus for the focus of statistical analysis and determining one or more driving factors for the focus of the statistical analysis based on results of the clustering operation. 10. The computer program product of claim 9 , wherein performing a follow-up question and answer conversation comprises detecting the most important driving factors for the focus of analysis based on the results of the clustering operation.