10. The computer system of claim 9 , wherein the archetype has an enumerable set of instances and the search keyword is associated with one of the instances.
9. A computer system, comprising: memory; a display; one or more processors; one or more programs stored in the memory and configured for execution by the one or more processors, the one or more programs including: instructions for receiving a search keyword provided by a user, wherein the search keyword satisfies a predefined expression pattern; instructions for determining an archetype for the search keyword; instructions for identifying a query operator for the archetype, wherein the query operator includes a generalized expression of the search keyword; instructions for applying the identified query operator to a document; instructions for identifying a chunk within the document that satisfies the identified query operator, wherein the chunk does not include an instance of the search keyword; and instructions for returning the chunk for display to the user.