10. The method of claim 7 , wherein determining the secondary user intent for the second substring comprises: determining a confidence score for a plurality of interpretations of the second substring; and determining the secondary user intent for the second substring based on an interpretation of the plurality of interpretations of the second substring having the highest confidence score.
11. The method of claim 10 , wherein the plurality of interpretations of the second substring exclude interpretations from domains that do not output the second type of concept.