14. The system of claim 9 , wherein the data validating that the particular term corresponds to the action comprises information about the relevance of the particular term to the action associated with the grammar.
15. The system of claim 14 , wherein the operations further comprise: identifying the particular term from a transcription of second speech data; determining that the relevance score for the particular term exceeds a threshold value; and in response to determining that the relevance score for the particular term exceeds the threshold value, performing the action associated with the grammar.