9. The system of claim 8 , wherein the selected template further specifies a comparison operation between the corresponding particular input and the values corresponding to the particular property in the one or more data structures or metadata for the one or more data structures to be searched in the one or more data sources.
9. The system of claim 8 , wherein the selected template further specifies a comparison operation between the corresponding particular input and the values corresponding to the particular property in the one or more data structures or metadata for the one or more data structures to be searched in the one or more data sources. 10. The system of claim 9 , wherein the selected template further comprises query specification data that is used by the query formulator to generate a structured query comprising a first clause that specifies how the corresponding particular input is compared to the one or more data structures when conducting a search.