13. One or more non-transitory computer-readable media storing computer-executable instructions that, when executed, cause one or more processors to perform acts comprising: identifying a genre of a content item being output by an electronic device based at least in part on an identity of a user associated with the electronic device, wherein the identity of the user is determined based at least in part on at least one of: a location of the electronic device; or demographic information of the user; receiving a request for information associated with a portion of the content item; selecting, based at least in part on the identified genre of the content item, a reference work entry from multiple different reference work entries each providing information pertinent to the request; and outputting the requested information from the selected reference work entry.
14. One or more non-transitory computer-readable media as recited in claim 13 , wherein the content item comprises audio, video, or text.