6. The method as recited in claim 5 , wherein applying one or more transformation rules to nodes of the syntactic tree includes reordering expressions of the input annotated phrase within an alternative version of the one or more annotated alternative versions generated, the expressions associated with nodes of the syntactic tree generated.
5. The method as recited in claim 1 , wherein generating the one or more annotated alternative versions of the input annotated phrase includes applying one or more transformation rules to nodes of the syntactic tree.