21. The system of claim 16 , wherein the one or more physical processors are further programmed to: use an environmental model to determine environmental information, wherein the context for the natural language utterance is determined based further on the environmental information.
21. The system of claim 16 , wherein the one or more physical processors are further programmed to: use an environmental model to determine environmental information, wherein the context for the natural language utterance is determined based further on the environmental information. 23. The system of claim 21 , wherein the determined request is based further on the context.