16. The computer-implemented method of claim 14 , wherein the first NLU result comprises a plurality of named entities, wherein a first named entity of the plurality of named entities corresponds to an intent associated with the first subject matter, and wherein a second named entity of the plurality of named entities corresponds to information regarding the intent.
14. A computer-implemented method comprising: under control of one or more computing devices configured with specific computer-executable instructions, receiving text corresponding to at least a portion of a user input; executing a first natural language understanding (“NLU”) process using the text, wherein the first NLU process is associated with a first subject matter, wherein the first NLU process produces a first NLU result, and wherein the first NLU result is associated with a first score indicative of a confidence in the first NLU result; executing a second NLU process using the text, wherein the second NLU process is associated with a second subject matter, wherein the second NLU process generates a second NLU result, and wherein the second NLU result is associated with a second score indicative of a confidence in the second NLU result; selecting the first NLU result based at least partly on the first score and the second score; and generating a response based at least partly on the first NLU result.