9. The method according to claim 3 , wherein the identifying step includes identifying a top-level combination of grammar descriptions in the declarative description.
9. The method according to claim 3 , wherein the identifying step includes identifying a top-level combination of grammar descriptions in the declarative description. 10. The method according to claim 9 , further comprising the step of: parsing, after the top-level combination of grammar descriptions is identified, at least one of the grammar descriptions of the identified combination, thereby further identifying a combination of grammar descriptions included in the at least one of the grammar descriptions.