Modifying a grammar of a hierarchical multimodal menu with keywords sold to customers

摘要

Services, systems, and computer program products are provided for modifying a grammar of a hierarchical multimodal menu that include selling to a customer a keyword, selling to a customer a location in a grammar in a hierarchical multimodal menu, and storing the keyword in the location. Storing the keyword in the location may be carried out by storing the keyword in a grammar cache in the grammar.