11. A method comprising: using a computer processor, generating a new query from a user-selected text string comprising: automatically identifying grammar rules associated with only the user-selected text fragments of the user-selected text string, wherein the user-selected text string comprises a sentence and is retrieved from an associated storage medium in response to a user query; and generating a new query for retrieving additional text strings from the associated storage medium which satisfy at least a portion of the identified grammar rules.
12. The method of claim 11 , wherein the grammar rules include a plurality of rules selected from the group consisting of: lexical rules; syntactic rules; and dependency rules.