6. The method of claim 1 , wherein the extraction of noun phrases is based on at least one of syntactic structure and coreference.
6. The method of claim 1 , wherein the extraction of noun phrases is based on at least one of syntactic structure and coreference. 7. The method of claim 6 , wherein the extraction is based on syntactic structure and the extracted noun phrase satisfies at least one rule selected from: a rule which is satisfied for a noun phrase which is a direct object of a verbal phrase that contains a verb which refers to a physical action on a device; and a rule which is satisfied for a noun phrase following a preposition which is used with physical objects.