6. The system of claim 1 , wherein the instructions further cause the one or more computers to perform operations comprising generating only query specializations that are included on a query whitelist.
6. The system of claim 1 , wherein the instructions further cause the one or more computers to perform operations comprising generating only query specializations that are included on a query whitelist. 7. The system of claim 6 wherein the query whitelist is a list of the plurality of candidate text queries.