Google has their knowledge graph, a semantic search engine for the most commonly asked questions. The wikipedia page for Knowledge graph cites Thomas Jefferson

Google has their knowledge graph, a semantic search engine for the most commonly asked questions. The wikipedia page for Knowledge graph cites Thomas Jefferson as an example, so I asked 'what years was Thomas Jefferson in office?', and Google deferred to the first paragraph of TJ's wiki. Then I asked 'What year was Thomas Jefferson born?', and it gave me a direct answer. So it sorta works, but it's not super awesome.