1. A computer implemented method for identifying candidate values to provide to a deep question answering (QA) system as part of a case, the method comprising: receiving a case, wherein the case includes a plurality of documents for evaluation by the deep QA system; evaluating the plurality of documents using natural language processing (NLP) to identify one or more concepts reflected by text content within the plurality of documents in the case, wherein the plurality of documents includes a plurality of distinct values for at least a first one of the concepts; selecting, from the plurality of distinct values, a candidate value for the first concept to provide to the deep QA system to process the case; and prior to submitting the case to the deep QA system, returning at least the candidate value selected for the first concept to present in a user interface.