10. A method of query enhancement of a Semantic Wiki unstructured knowledge base, comprising: annotating selected knowledge entities in said unstructured knowledge base with annotations comprising special reasoning properties that infer relations between said selected knowledge entities and other knowledge entities in the knowledge base; and searching said knowledge base with a search query that uses said special reasoning properties to locate information relevant to the search that is not expressly stated in the search query, said searching comprising executing an initial search using said search query to locate knowledge entities annotated with said special reasoning properties, and executing an extended search using the results of said initial search and reasoning logic to perform semantic reasoning based upon the properties of the located knowledge entities to identify related knowledge entities.
11. The method of claim 10 , wherein said Semantic Wiki knowledge base stores knowledge on wiki pages, and the method further comprises storing a separate page in said knowledge base for each such special reasoning property, said separate page defining a relation between property values annotated with said special reasoning property and other property values, and said searching comprising identifying wiki pages that contain knowledge entities having such special reasoning property.