13. The computer-implemented method of claim 12 wherein generating a plurality of different table valued functions comprises: generating a third table valued function to represent the semantic query and to define binding both subject nodes and object nodes to given values.
13. The computer-implemented method of claim 12 wherein generating a plurality of different table valued functions comprises: generating a third table valued function to represent the semantic query and to define binding both subject nodes and object nodes to given values. 14. The computer-implemented method of claim 13 wherein generating a plurality of different table valued functions comprises: generating a fourth table valued function to represent the semantic query and to define binding neither subject nodes nor object nodes to given values.