4. A method as claimed in claim 3 , wherein where the response is in the form of language, the response is in the form of one or more sentences constructed of one or more sentence segments, wherein each sentence segment conveys a coherent meaningful piece of information.
4. A method as claimed in claim 3 , wherein where the response is in the form of language, the response is in the form of one or more sentences constructed of one or more sentence segments, wherein each sentence segment conveys a coherent meaningful piece of information. 7. A method as claimed in claim 4 , wherein each of the sentence segments is associated with a sentence position category, which indicates where within a complete sentence the sentence segment is permitted to be located.