13. A system for using user preferences to customize answer output comprising: a computing platform having a processor; a computer readable, tangible storage device; and program instructions stored by the computer readable, tangible storage device, which, when executed by a processor, cause a computing platform to: extract from a first question one or more user preferences for a first user and one or more sentiment levels for a first user; perform a first semantic search on the first question; receive a plurality of candidate answers from the first semantic search; responsive to determining, by a computer that the first question contains multiple-parts or multiple-steps, retrieve, by a computer, supplemental information regarding at least one of the candidate answers; select one or more of the received candidate answers according to the one or more sentiment levels, or according to the one or more user preferences, or both, and adjust for the retrieved supplemental information; and produce a computer output including the selected one or more candidate answers.
16. The system as set forth in claim 13 wherein the retrieved supplemental information is further related to one or more of the user preferences.