10. The method of claim 9 , wherein the particular semantic class is a restaurant class, the dictionary term identifies a first restaurant, and the new dictionary term identifies a second restaurant.
10. The method of claim 9 , wherein the particular semantic class is a restaurant class, the dictionary term identifies a first restaurant, and the new dictionary term identifies a second restaurant. 11. The method of claim 10 , wherein the extracted document pattern shared by the first documents and the second documents includes the word “restaurant”.