15. The method of claim 14 , wherein a voice response grammar is associated with the user, the voice response grammar comprising a plurality of key phrases including said key phrase, the plurality of key phrases each being respectively associated with one of a plurality of presentation actions.
15. The method of claim 14 , wherein a voice response grammar is associated with the user, the voice response grammar comprising a plurality of key phrases including said key phrase, the plurality of key phrases each being respectively associated with one of a plurality of presentation actions. 16. The method of claim 15 , wherein the key phrase is associated with an optional parameter for controlling presentation of the selected structural element to the user, the method further comprising: determining that the optional parameter was received along with the key phrase spoken by the user.