10. The computer program product of claim 9 wherein the actions further comprise: receiving a question at the QA system; identifying, by the QA system, one or more candidate answers, wherein at least one of the candidate answers is derived from the child post with one or more anaphors relating to the corresponding words in the parent post; and responding with at least one of the candidate answers.
9. The computer program product of claim 7 wherein the actions further comprise: identifying referential data in the child post and the parent post, wherein at least one of the referential data is selected from the group consisting of domain, question, focus, concept, statements, and a lexical answer type (LAT); and storing the referential data in the corpus utilized by the QA system.